Merge branch 'development' into fix/docImprovements

* development: (31 commits)
  Prettier ignore Metacoin artifacts
  Publish
  Updated CHANGELOGS
  Improve deployer error message
  Fix 0x.js tests
  Fix lint issue
  Simply export
  Move NULL_BYTES to @0xproject/utils
  Simplify the tests
  Fix lint error
  Add step to publishing that upload staging doc jsons, deploys staging website, opens every docs page and asks the dev to confirm that each one renders properly before publishing
  Fix web3Wrapper build command
  Add top-level `yarn lerna:stage_docs` to upload docJsons to the staging S3 bucket for all packages with a docs page
  Refactor publish script to have it's main execution body be lean and discrete steps
  Removed unused command
  Remove 0x.js test artifacts
  Fix tslint
  Move migrations into separate monorepo subpackage and hook it up to 0x.js and contracts
  Remove unused var
  Refactor RedundantRpcSubprovider into RedundantSubprovider
  ...

# Conflicts:
#	packages/react-docs/CHANGELOG.json

136 files changed, 1030 insertions, 543 deletions

diff --git a/.gitignore b/.gitignore
index 4d315dc3a..7ce855341 100644
--- a/.gitignore
+++ b/.gitignore
@@ -74,7 +74,8 @@ packages/react-docs/example/public/bundle*
 bin/
 
 # generated contract artifacts
-packages/contracts/src/artifacts
+packages/0x.js/test/artifacts
+packages/migrations/src/artifacts
 
 # generated contract wrappers
 packages/0x.js/src/contract_wrappers/generated/
diff --git a/.prettierignore b/.prettierignore
index 5b8003c95..b3e217fb0 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -1,5 +1,6 @@
 lib
 .nyc_output
 /packages/contracts/src/artifacts
+/packages/metacoin/artifacts
 package.json
 scripts/postpublish_utils.js
diff --git a/README.md b/README.md
index 7f5f312e3..d7a1771c2 100644
--- a/README.md
+++ b/README.md
@@ -74,7 +74,7 @@ You can include those by prepending @0xproject/typescript-typings package to you
 
 We strongly recommend that the community help us make improvements and determine the future direction of the protocol. To report bugs within this package, please create an issue in this repository.
 
-Please read our [contribution guidelines](./CONTRIBUTING.md) before getting started.
+#### Read our [contribution guidelines](./CONTRIBUTING.md).
 
 ### Install dependencies
 
@@ -118,24 +118,6 @@ yarn lerna:run lint
 
 ### Run Tests
 
-Before running the tests, you will need to spin up a [TestRPC](https://www.npmjs.com/package/ethereumjs-testrpc) instance and deploy all the 0x smart contracts.
-
-In a separate terminal, start TestRPC (a convenience command is provided as part of this repo)
-
-```bash
-yarn testrpc
-```
-
-Then in your main terminal run
-
-```
-cd packages/contracts
-yarn migrate
-cd ..
-```
-
-And finally from the root project directory run
-
 ```bash
-yarn lerna:run test
+yarn lerna:test
 ```
diff --git a/package.json b/package.json
index b3b3e3bcc..3f2486656 100644
--- a/package.json
+++ b/package.json
@@ -13,11 +13,13 @@
         "test:installation": "node ./packages/monorepo-scripts/lib/test_installation.js",
         "lerna:install": "yarn install",
         "lerna:run": "lerna run",
+        "lerna:test": "lerna run test",
         "lerna:clean": "lerna run clean",
         "lerna:build": "lerna run build",
         "lerna:rebuild": "run-s lerna:clean lerna:build",
         "lerna:publish": "run-s lerna:install lerna:rebuild script:publish",
         "lerna:publish:dry": "run-s lerna:install lerna:rebuild script:publish:dry",
+        "lerna:stage_docs": "lerna run docs:stage",
         "script:publish": "node ./packages/monorepo-scripts/lib/publish.js",
         "script:publish:dry": "IS_DRY_RUN=true yarn script:publish"
     },
diff --git a/packages/0x.js/CHANGELOG.json b/packages/0x.js/CHANGELOG.json
index 96bef0ebe..9b5c52d00 100644
--- a/packages/0x.js/CHANGELOG.json
+++ b/packages/0x.js/CHANGELOG.json
@@ -6,7 +6,8 @@
                 "note": "Moved Web3.Provider to `@0xproject/types:Provider`",
                 "pr": 501
             }
-        ]
+        ],
+        "timestamp": 1523462196
     },
     {
         "version": "0.35.0",
diff --git a/packages/0x.js/CHANGELOG.md b/packages/0x.js/CHANGELOG.md
index c18915417..693b4f4b2 100644
--- a/packages/0x.js/CHANGELOG.md
+++ b/packages/0x.js/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.36.0 - _April 11, 2018_
+
+    * Moved Web3.Provider to `@0xproject/types:Provider` (#501)
+
 ## v0.35.0 - _April 2, 2018_
 
     * Removed `ZeroExError.TransactionMiningTimeout` and moved it to '@0xproject/web3_wrapper' `Web3WrapperErrors.TransactionMiningTimeout` (#485)
diff --git a/packages/0x.js/package.json b/packages/0x.js/package.json
index 882b40733..cd339e770 100644
--- a/packages/0x.js/package.json
+++ b/packages/0x.js/package.json
@@ -1,6 +1,6 @@
 {
     "name": "0x.js",
-    "version": "0.35.0",
+    "version": "0.36.0",
     "description": "A javascript library for interacting with the 0x protocol",
     "keywords": [
         "0x.js",
@@ -15,16 +15,16 @@
         "build:watch": "tsc -w",
         "prebuild": "run-s clean generate_contract_wrappers",
         "build": "run-p build:umd:prod build:commonjs; exit 0;",
-        "generate_contract_wrappers": "node ../abi-gen/lib/index.js --abis 'src/artifacts/@(Exchange|Token|TokenTransferProxy|EtherToken|TokenRegistry|DummyToken).json' --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/contract_wrappers/generated --backend ethers && prettier --write 'src/contract_wrappers/generated/**.ts'",
+        "generate_contract_wrappers": "node ../abi-gen/lib/index.js --abis 'src/compact_artifacts/@(Exchange|Token|TokenTransferProxy|EtherToken|TokenRegistry|DummyToken).json' --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/contract_wrappers/generated --backend ethers && prettier --write 'src/contract_wrappers/generated/**.ts'",
         "lint": "tslint --project . 'src/**/*.ts' 'test/**/*.ts'",
         "test:circleci": "run-s test:coverage",
         "test": "run-s clean test:commonjs",
         "test:coverage": "nyc npm run test --all && yarn coverage:report:lcov",
         "coverage:report:lcov": "nyc report --reporter=text-lcov > coverage/lcov.info",
-        "update_contracts": "for i in ${npm_package_config_artifacts}; do copyfiles -u 4 ../contracts/build/contracts/$i.json ../0x.js/src/artifacts; done;",
+        "update_artifacts": "for i in ${npm_package_config_contracts}; do copyfiles -u 4 ../migrations/src/artifacts/$i.json test/artifacts; done;",
         "clean": "shx rm -rf _bundles lib test_temp scripts",
         "build:umd:prod": "NODE_ENV=production webpack",
-        "build:commonjs": "tsc && copyfiles -u 2 './src/artifacts/**/*.json' ./lib/src/artifacts && copyfiles -u 3 './lib/src/monorepo_scripts/**/*' ./scripts",
+        "build:commonjs": "tsc && yarn update_artifacts && copyfiles -u 2 './src/compact_artifacts/**/*.json' ./lib/src/compact_artifacts && copyfiles -u 3 './lib/src/monorepo_scripts/**/*' ./scripts",
         "test:commonjs": "run-s build:commonjs run_mocha",
         "run_mocha": "mocha lib/test/**/*_test.js --timeout 10000 --bail --exit",
         "manual:postpublish": "yarn build; node ./scripts/postpublish.js",
@@ -33,7 +33,8 @@
         "upload_docs_json": "aws s3 cp generated_docs/index.json $S3_URL --profile 0xproject --grants read=uri=http://acs.amazonaws.com/groups/global/AllUsers --content-type application/json"
     },
     "config": {
-        "artifacts": "TokenTransferProxy Exchange TokenRegistry Token EtherToken",
+        "compact_artifacts": "Exchange DummyToken ZRXToken Token EtherToken TokenTransferProxy TokenRegistry",
+        "contracts": "Exchange DummyToken ZRXToken Token WETH9 TokenTransferProxy MultiSigWallet MultiSigWalletWithTimeLock MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress MaliciousToken TokenRegistry Arbitrage EtherDelta AccountLevels",
         "postpublish": {
             "assets": [
                 "packages/0x.js/_bundles/index.js",
@@ -60,9 +61,11 @@
         "node": ">=6.0.0"
     },
     "devDependencies": {
-        "@0xproject/dev-utils": "^0.3.4",
-        "@0xproject/monorepo-scripts": "^0.1.16",
-        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/deployer": "^0.4.0",
+        "@0xproject/dev-utils": "^0.3.5",
+        "@0xproject/monorepo-scripts": "^0.1.17",
+        "@0xproject/subproviders": "^0.8.4",
+        "@0xproject/tslint-config": "^0.4.15",
         "@types/bintrees": "^1.0.2",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^2.2.42",
@@ -90,16 +93,17 @@
         "tslint": "5.8.0",
         "typedoc": "0xProject/typedoc",
         "typescript": "2.7.1",
+        "web3-provider-engine": "^13.0.1",
         "webpack": "^3.1.0"
     },
     "dependencies": {
-        "@0xproject/assert": "^0.2.5",
-        "@0xproject/base-contract": "^0.1.0",
-        "@0xproject/json-schemas": "^0.7.19",
-        "@0xproject/types": "^0.5.0",
-        "@0xproject/typescript-typings": "^0.0.3",
-        "@0xproject/utils": "^0.5.0",
-        "@0xproject/web3-wrapper": "^0.5.0",
+        "@0xproject/assert": "^0.2.6",
+        "@0xproject/base-contract": "^0.2.0",
+        "@0xproject/json-schemas": "^0.7.20",
+        "@0xproject/types": "^0.6.0",
+        "@0xproject/typescript-typings": "^0.1.0",
+        "@0xproject/utils": "^0.5.1",
+        "@0xproject/web3-wrapper": "^0.6.0",
         "bintrees": "^1.0.2",
         "bn.js": "^4.11.8",
         "ethereumjs-abi": "^0.6.4",
@@ -111,6 +115,9 @@
         "uuid": "^3.1.0",
         "web3": "^0.20.0"
     },
+    "optionalDependencies": {
+        "@0xproject/migrations": "^0.0.1"
+    },
     "publishConfig": {
         "access": "public"
     }
diff --git a/packages/0x.js/src/artifacts.ts b/packages/0x.js/src/artifacts.ts
index cbacd7d56..a91d9ae1f 100644
--- a/packages/0x.js/src/artifacts.ts
+++ b/packages/0x.js/src/artifacts.ts
@@ -1,10 +1,10 @@
-import * as DummyTokenArtifact from './artifacts/DummyToken.json';
-import * as EtherTokenArtifact from './artifacts/EtherToken.json';
-import * as ExchangeArtifact from './artifacts/Exchange.json';
-import * as TokenArtifact from './artifacts/Token.json';
-import * as TokenRegistryArtifact from './artifacts/TokenRegistry.json';
-import * as TokenTransferProxyArtifact from './artifacts/TokenTransferProxy.json';
-import * as ZRXArtifact from './artifacts/ZRX.json';
+import * as DummyTokenArtifact from './compact_artifacts/DummyToken.json';
+import * as EtherTokenArtifact from './compact_artifacts/EtherToken.json';
+import * as ExchangeArtifact from './compact_artifacts/Exchange.json';
+import * as TokenArtifact from './compact_artifacts/Token.json';
+import * as TokenRegistryArtifact from './compact_artifacts/TokenRegistry.json';
+import * as TokenTransferProxyArtifact from './compact_artifacts/TokenTransferProxy.json';
+import * as ZRXArtifact from './compact_artifacts/ZRX.json';
 import { Artifact } from './types';
 
 export const artifacts = {
diff --git a/packages/0x.js/src/artifacts/DummyToken.json b/packages/0x.js/src/compact_artifacts/DummyToken.json
index f64a8cd3d..f64a8cd3d 100644
--- a/packages/0x.js/src/artifacts/DummyToken.json
+++ b/packages/0x.js/src/compact_artifacts/DummyToken.json
diff --git a/packages/0x.js/src/artifacts/EtherToken.json b/packages/0x.js/src/compact_artifacts/EtherToken.json
index 26cca57cd..26cca57cd 100644
--- a/packages/0x.js/src/artifacts/EtherToken.json
+++ b/packages/0x.js/src/compact_artifacts/EtherToken.json
diff --git a/packages/0x.js/src/artifacts/Exchange.json b/packages/0x.js/src/compact_artifacts/Exchange.json
index af8db7360..af8db7360 100644
--- a/packages/0x.js/src/artifacts/Exchange.json
+++ b/packages/0x.js/src/compact_artifacts/Exchange.json
diff --git a/packages/0x.js/src/artifacts/Token.json b/packages/0x.js/src/compact_artifacts/Token.json
index 3b5a86ae0..3b5a86ae0 100644
--- a/packages/0x.js/src/artifacts/Token.json
+++ b/packages/0x.js/src/compact_artifacts/Token.json
diff --git a/packages/0x.js/src/artifacts/TokenRegistry.json b/packages/0x.js/src/compact_artifacts/TokenRegistry.json
index 0f583628c..0f583628c 100644
--- a/packages/0x.js/src/artifacts/TokenRegistry.json
+++ b/packages/0x.js/src/compact_artifacts/TokenRegistry.json
diff --git a/packages/0x.js/src/artifacts/TokenTransferProxy.json b/packages/0x.js/src/compact_artifacts/TokenTransferProxy.json
index 8cf551ddb..8cf551ddb 100644
--- a/packages/0x.js/src/artifacts/TokenTransferProxy.json
+++ b/packages/0x.js/src/compact_artifacts/TokenTransferProxy.json
diff --git a/packages/0x.js/src/artifacts/ZRX.json b/packages/0x.js/src/compact_artifacts/ZRX.json
index e40b8f268..e40b8f268 100644
--- a/packages/0x.js/src/artifacts/ZRX.json
+++ b/packages/0x.js/src/compact_artifacts/ZRX.json
diff --git a/packages/0x.js/test/0x.js_test.ts b/packages/0x.js/test/0x.js_test.ts
index 70e85aa52..de5a6be58 100644
--- a/packages/0x.js/test/0x.js_test.ts
+++ b/packages/0x.js/test/0x.js_test.ts
@@ -1,16 +1,23 @@
+import { Deployer } from '@0xproject/deployer';
 import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
+// HACK: This dependency is optional since it is only available when run from within
+// the monorepo. tslint doesn't handle optional dependencies
+// tslint:disable-next-line:no-implicit-dependencies
+import { runMigrationsAsync } from '@0xproject/migrations';
 import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import * as _ from 'lodash';
 import 'mocha';
+import * as path from 'path';
 import * as Sinon from 'sinon';
 
 import { ApprovalContractEventArgs, LogWithDecodedArgs, Order, TokenEvents, ZeroEx } from '../src';
 
 import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
+import { deployer } from './utils/deployer';
 import { TokenUtils } from './utils/token_utils';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
 chaiSetup.configure();
@@ -19,10 +26,14 @@ const expect = chai.expect;
 const SHOULD_ADD_PERSONAL_MESSAGE_PREFIX = false;
 
 describe('ZeroEx library', () => {
-    const config = {
-        networkId: constants.TESTRPC_NETWORK_ID,
-    };
-    const zeroEx = new ZeroEx(web3.currentProvider, config);
+    let zeroEx: ZeroEx;
+    before(async () => {
+        await runMigrationsAsync(deployer);
+        const config = {
+            networkId: constants.TESTRPC_NETWORK_ID,
+        };
+        zeroEx = new ZeroEx(provider, config);
+    });
     describe('#setProvider', () => {
         it('overrides provider in nested web3s and invalidates contractInstances', async () => {
             // Instantiate the contract instances with the current provider
@@ -31,10 +42,9 @@ describe('ZeroEx library', () => {
             expect((zeroEx.exchange as any)._exchangeContractIfExists).to.not.be.undefined();
             expect((zeroEx.tokenRegistry as any)._tokenRegistryContractIfExists).to.not.be.undefined();
 
-            const newProvider = web3Factory.getRpcProvider();
             // Add property to newProvider so that we can differentiate it from old provider
-            (newProvider as any).zeroExTestId = 1;
-            zeroEx.setProvider(newProvider, constants.TESTRPC_NETWORK_ID);
+            (provider as any).zeroExTestId = 1;
+            zeroEx.setProvider(provider, constants.TESTRPC_NETWORK_ID);
 
             // Check that contractInstances with old provider are removed after provider update
             expect((zeroEx.exchange as any)._exchangeContractIfExists).to.be.undefined();
@@ -278,7 +288,7 @@ describe('ZeroEx library', () => {
                 exchangeContractAddress: ZeroEx.NULL_ADDRESS,
                 networkId: constants.TESTRPC_NETWORK_ID,
             };
-            const zeroExWithWrongExchangeAddress = new ZeroEx(web3.currentProvider, zeroExConfig);
+            const zeroExWithWrongExchangeAddress = new ZeroEx(provider, zeroExConfig);
             expect(zeroExWithWrongExchangeAddress.exchange.getContractAddress()).to.be.equal(ZeroEx.NULL_ADDRESS);
         });
         it('allows to specify token registry token contract address', async () => {
@@ -286,7 +296,7 @@ describe('ZeroEx library', () => {
                 tokenRegistryContractAddress: ZeroEx.NULL_ADDRESS,
                 networkId: constants.TESTRPC_NETWORK_ID,
             };
-            const zeroExWithWrongTokenRegistryAddress = new ZeroEx(web3.currentProvider, zeroExConfig);
+            const zeroExWithWrongTokenRegistryAddress = new ZeroEx(provider, zeroExConfig);
             expect(zeroExWithWrongTokenRegistryAddress.tokenRegistry.getContractAddress()).to.be.equal(
                 ZeroEx.NULL_ADDRESS,
             );
diff --git a/packages/0x.js/test/artifacts_test.ts b/packages/0x.js/test/artifacts_test.ts
index e8ab9aa97..17f068a2e 100644
--- a/packages/0x.js/test/artifacts_test.ts
+++ b/packages/0x.js/test/artifacts_test.ts
@@ -17,11 +17,11 @@ describe('Artifacts', () => {
         const packageJSONContent = fs.readFileSync('package.json', 'utf-8');
         const packageJSON = JSON.parse(packageJSONContent);
         const mnemonic = packageJSON.config.mnemonic;
-        const web3Provider = new HDWalletProvider(mnemonic, kovanRpcUrl);
+        const provider = new HDWalletProvider(mnemonic, kovanRpcUrl);
         const config = {
             networkId: constants.KOVAN_NETWORK_ID,
         };
-        const zeroEx = new ZeroEx(web3Provider, config);
+        const zeroEx = new ZeroEx(provider, config);
         it('token registry contract is deployed', async () => {
             await (zeroEx.tokenRegistry as any)._getTokenRegistryContractAsync();
         }).timeout(TIMEOUT);
@@ -37,11 +37,11 @@ describe('Artifacts', () => {
         const packageJSONContent = fs.readFileSync('package.json', 'utf-8');
         const packageJSON = JSON.parse(packageJSONContent);
         const mnemonic = packageJSON.config.mnemonic;
-        const web3Provider = new HDWalletProvider(mnemonic, ropstenRpcUrl);
+        const provider = new HDWalletProvider(mnemonic, ropstenRpcUrl);
         const config = {
             networkId: constants.ROPSTEN_NETWORK_ID,
         };
-        const zeroEx = new ZeroEx(web3Provider, config);
+        const zeroEx = new ZeroEx(provider, config);
         it('token registry contract is deployed', async () => {
             await (zeroEx.tokenRegistry as any)._getTokenRegistryContractAsync();
         }).timeout(TIMEOUT);
diff --git a/packages/0x.js/test/assert_test.ts b/packages/0x.js/test/assert_test.ts
index c4451742f..b08f3e23b 100644
--- a/packages/0x.js/test/assert_test.ts
+++ b/packages/0x.js/test/assert_test.ts
@@ -6,15 +6,15 @@ import { ZeroEx } from '../src';
 import { assert } from '../src/utils/assert';
 
 import { constants } from './utils/constants';
+import { provider } from './utils/web3_wrapper';
 
 const expect = chai.expect;
 
 describe('Assertion library', () => {
-    const web3 = web3Factory.create();
     const config = {
         networkId: constants.TESTRPC_NETWORK_ID,
     };
-    const zeroEx = new ZeroEx(web3.currentProvider, config);
+    const zeroEx = new ZeroEx(provider, config);
     describe('#isSenderAddressHexAsync', () => {
         it('throws when address is invalid', async () => {
             const address = '0xdeadbeef';
diff --git a/packages/0x.js/test/ether_token_wrapper_test.ts b/packages/0x.js/test/ether_token_wrapper_test.ts
index 644101dc7..99c42fe0b 100644
--- a/packages/0x.js/test/ether_token_wrapper_test.ts
+++ b/packages/0x.js/test/ether_token_wrapper_test.ts
@@ -3,7 +3,6 @@ import { BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
 import 'mocha';
-import * as Web3 from 'web3';
 
 import {
     ApprovalContractEventArgs,
@@ -24,7 +23,7 @@ import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
 import { reportNodeCallbackErrors } from './utils/report_callback_errors';
 import { TokenUtils } from './utils/token_utils';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -55,7 +54,7 @@ describe('EtherTokenWrapper', () => {
     const depositAmount = new BigNumber(42);
     const withdrawalAmount = new BigNumber(42);
     before(async () => {
-        zeroEx = new ZeroEx(web3.currentProvider, zeroExConfig);
+        zeroEx = new ZeroEx(provider, zeroExConfig);
         tokens = await zeroEx.tokenRegistry.getTokensAsync();
         userAddresses = await zeroEx.getAvailableAddressesAsync();
         addressWithETH = userAddresses[0];
@@ -79,7 +78,7 @@ describe('EtherTokenWrapper', () => {
             const UNKNOWN_NETWORK_NETWORK_ID = 10;
             expect(
                 () =>
-                    new ZeroEx(web3.currentProvider, {
+                    new ZeroEx(provider, {
                         networkId: UNKNOWN_NETWORK_NETWORK_ID,
                     } as any),
             ).to.throw();
@@ -261,8 +260,7 @@ describe('EtherTokenWrapper', () => {
                     callbackNeverToBeCalled,
                 );
                 const callbackToBeCalled = reportNodeCallbackErrors(done)();
-                const newProvider = web3Factory.getRpcProvider();
-                zeroEx.setProvider(newProvider, constants.TESTRPC_NETWORK_ID);
+                zeroEx.setProvider(provider, constants.TESTRPC_NETWORK_ID);
                 await zeroEx.etherToken.depositAsync(etherTokenAddress, transferAmount, addressWithETH);
                 zeroEx.etherToken.subscribe(
                     etherTokenAddress,
diff --git a/packages/0x.js/test/event_watcher_test.ts b/packages/0x.js/test/event_watcher_test.ts
index 2fa6c0580..40ffcc2f6 100644
--- a/packages/0x.js/test/event_watcher_test.ts
+++ b/packages/0x.js/test/event_watcher_test.ts
@@ -5,7 +5,6 @@ import * as chai from 'chai';
 import * as _ from 'lodash';
 import 'mocha';
 import * as Sinon from 'sinon';
-import * as Web3 from 'web3';
 
 import { LogEvent } from '../src';
 import { EventWatcher } from '../src/order_watcher/event_watcher';
@@ -13,12 +12,12 @@ import { DoneCallback } from '../src/types';
 
 import { chaiSetup } from './utils/chai_setup';
 import { reportNodeCallbackErrors } from './utils/report_callback_errors';
+import { provider } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
 
 describe('EventWatcher', () => {
-    let web3: Web3;
     let stubs: Sinon.SinonStub[] = [];
     let eventWatcher: EventWatcher;
     let web3Wrapper: Web3Wrapper;
@@ -53,9 +52,8 @@ describe('EventWatcher', () => {
         transactionIndex: 0,
     };
     before(async () => {
-        web3 = web3Factory.create();
         const pollingIntervalMs = 10;
-        web3Wrapper = new Web3Wrapper(web3.currentProvider);
+        web3Wrapper = new Web3Wrapper(provider);
         eventWatcher = new EventWatcher(web3Wrapper, pollingIntervalMs);
     });
     afterEach(() => {
diff --git a/packages/0x.js/test/exchange_transfer_simulator_test.ts b/packages/0x.js/test/exchange_transfer_simulator_test.ts
index 4447a61cb..cb976a0ae 100644
--- a/packages/0x.js/test/exchange_transfer_simulator_test.ts
+++ b/packages/0x.js/test/exchange_transfer_simulator_test.ts
@@ -9,7 +9,7 @@ import { ExchangeTransferSimulator } from '../src/utils/exchange_transfer_simula
 
 import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -19,7 +19,7 @@ describe('ExchangeTransferSimulator', () => {
     const config = {
         networkId: constants.TESTRPC_NETWORK_ID,
     };
-    const zeroEx = new ZeroEx(web3.currentProvider, config);
+    const zeroEx = new ZeroEx(provider, config);
     const transferAmount = new BigNumber(5);
     let userAddresses: string[];
     let tokens: Token[];
diff --git a/packages/0x.js/test/exchange_wrapper_test.ts b/packages/0x.js/test/exchange_wrapper_test.ts
index cfc390bae..cd74af5a1 100644
--- a/packages/0x.js/test/exchange_wrapper_test.ts
+++ b/packages/0x.js/test/exchange_wrapper_test.ts
@@ -4,7 +4,6 @@ import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import * as _ from 'lodash';
 import 'mocha';
-import * as Web3 from 'web3';
 
 import {
     BlockRange,
@@ -26,7 +25,7 @@ import { constants } from './utils/constants';
 import { FillScenarios } from './utils/fill_scenarios';
 import { reportNodeCallbackErrors } from './utils/report_callback_errors';
 import { TokenUtils } from './utils/token_utils';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -46,7 +45,7 @@ describe('ExchangeWrapper', () => {
         networkId: constants.TESTRPC_NETWORK_ID,
     };
     before(async () => {
-        zeroEx = new ZeroEx(web3.currentProvider, config);
+        zeroEx = new ZeroEx(provider, config);
         exchangeContractAddress = zeroEx.exchange.getContractAddress();
         userAddresses = await zeroEx.getAvailableAddressesAsync();
         tokens = await zeroEx.tokenRegistry.getTokensAsync();
@@ -977,8 +976,7 @@ describe('ExchangeWrapper', () => {
                 );
                 zeroEx.exchange.subscribe(ExchangeEvents.LogFill, indexFilterValues, callbackNeverToBeCalled);
 
-                const newProvider = web3Factory.getRpcProvider();
-                zeroEx.setProvider(newProvider, constants.TESTRPC_NETWORK_ID);
+                zeroEx.setProvider(provider, constants.TESTRPC_NETWORK_ID);
 
                 const callback = reportNodeCallbackErrors(done)(
                     (logEvent: DecodedLogEvent<LogFillContractEventArgs>) => {
diff --git a/packages/0x.js/test/expiration_watcher_test.ts b/packages/0x.js/test/expiration_watcher_test.ts
index ed7a6e5e3..29b111fa3 100644
--- a/packages/0x.js/test/expiration_watcher_test.ts
+++ b/packages/0x.js/test/expiration_watcher_test.ts
@@ -4,7 +4,6 @@ import * as chai from 'chai';
 import * as _ from 'lodash';
 import 'mocha';
 import * as Sinon from 'sinon';
-import * as Web3 from 'web3';
 
 import { ZeroEx } from '../src/0x';
 import { ExpirationWatcher } from '../src/order_watcher/expiration_watcher';
@@ -16,7 +15,7 @@ import { constants } from './utils/constants';
 import { FillScenarios } from './utils/fill_scenarios';
 import { reportNoErrorCallbackErrors } from './utils/report_callback_errors';
 import { TokenUtils } from './utils/token_utils';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -44,7 +43,7 @@ describe('ExpirationWatcher', () => {
         const config = {
             networkId: constants.TESTRPC_NETWORK_ID,
         };
-        zeroEx = new ZeroEx(web3.currentProvider, config);
+        zeroEx = new ZeroEx(provider, config);
         exchangeContractAddress = zeroEx.exchange.getContractAddress();
         userAddresses = await zeroEx.getAvailableAddressesAsync();
         tokens = await zeroEx.tokenRegistry.getTokensAsync();
diff --git a/packages/0x.js/test/order_state_watcher_test.ts b/packages/0x.js/test/order_state_watcher_test.ts
index 4210e013f..45a292c8b 100644
--- a/packages/0x.js/test/order_state_watcher_test.ts
+++ b/packages/0x.js/test/order_state_watcher_test.ts
@@ -3,7 +3,6 @@ import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import * as _ from 'lodash';
 import 'mocha';
-import * as Web3 from 'web3';
 
 import {
     ExchangeContractErrs,
@@ -23,7 +22,7 @@ import { constants } from './utils/constants';
 import { FillScenarios } from './utils/fill_scenarios';
 import { reportNodeCallbackErrors } from './utils/report_callback_errors';
 import { TokenUtils } from './utils/token_utils';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 const TIMEOUT_MS = 150;
 
@@ -51,7 +50,7 @@ describe('OrderStateWatcher', () => {
     const decimals = constants.ZRX_DECIMALS;
     const fillableAmount = ZeroEx.toBaseUnitAmount(new BigNumber(5), decimals);
     before(async () => {
-        zeroEx = new ZeroEx(web3.currentProvider, config);
+        zeroEx = new ZeroEx(provider, config);
         orderStateWatcher = zeroEx.createOrderStateWatcher();
         exchangeContractAddress = zeroEx.exchange.getContractAddress();
         userAddresses = await zeroEx.getAvailableAddressesAsync();
diff --git a/packages/0x.js/test/order_validation_test.ts b/packages/0x.js/test/order_validation_test.ts
index 5472ca8f6..c894774b8 100644
--- a/packages/0x.js/test/order_validation_test.ts
+++ b/packages/0x.js/test/order_validation_test.ts
@@ -3,7 +3,6 @@ import { BlockParamLiteral } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import * as Sinon from 'sinon';
-import * as Web3 from 'web3';
 
 import { ExchangeContractErrs, SignedOrder, Token, ZeroEx, ZeroExError } from '../src';
 import { TradeSide, TransferType } from '../src/types';
@@ -14,7 +13,7 @@ import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
 import { FillScenarios } from './utils/fill_scenarios';
 import { TokenUtils } from './utils/token_utils';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -40,7 +39,7 @@ describe('OrderValidation', () => {
         networkId: constants.TESTRPC_NETWORK_ID,
     };
     before(async () => {
-        zeroEx = new ZeroEx(web3.currentProvider, config);
+        zeroEx = new ZeroEx(provider, config);
         exchangeContractAddress = zeroEx.exchange.getContractAddress();
         userAddresses = await zeroEx.getAvailableAddressesAsync();
         [coinbase, makerAddress, takerAddress, feeRecipient] = userAddresses;
diff --git a/packages/0x.js/test/subscription_test.ts b/packages/0x.js/test/subscription_test.ts
index 9b4751287..ed4f838c0 100644
--- a/packages/0x.js/test/subscription_test.ts
+++ b/packages/0x.js/test/subscription_test.ts
@@ -3,7 +3,6 @@ import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 import 'mocha';
 import * as Sinon from 'sinon';
-import * as Web3 from 'web3';
 
 import { ApprovalContractEventArgs, DecodedLogEvent, Token, TokenEvents, ZeroEx } from '../src';
 import { DoneCallback } from '../src/types';
@@ -11,7 +10,7 @@ import { DoneCallback } from '../src/types';
 import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
 import { assertNodeCallbackError } from './utils/report_callback_errors';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
@@ -26,7 +25,7 @@ describe('SubscriptionTest', () => {
         networkId: constants.TESTRPC_NETWORK_ID,
     };
     before(async () => {
-        zeroEx = new ZeroEx(web3.currentProvider, config);
+        zeroEx = new ZeroEx(provider, config);
         userAddresses = await zeroEx.getAvailableAddressesAsync();
         tokens = await zeroEx.tokenRegistry.getTokensAsync();
         coinbase = userAddresses[0];
diff --git a/packages/0x.js/test/token_registry_wrapper_test.ts b/packages/0x.js/test/token_registry_wrapper_test.ts
index 3b7ce46fb..19caa2ed4 100644
--- a/packages/0x.js/test/token_registry_wrapper_test.ts
+++ b/packages/0x.js/test/token_registry_wrapper_test.ts
@@ -8,7 +8,7 @@ import { Token, ZeroEx } from '../src';
 
 import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -31,7 +31,7 @@ describe('TokenRegistryWrapper', () => {
         networkId: constants.TESTRPC_NETWORK_ID,
     };
     before(async () => {
-        zeroEx = new ZeroEx(web3.currentProvider, config);
+        zeroEx = new ZeroEx(provider, config);
         tokens = await zeroEx.tokenRegistry.getTokensAsync();
         _.map(tokens, token => {
             tokenAddressBySymbol[token.symbol] = token.address;
diff --git a/packages/0x.js/test/token_transfer_proxy_wrapper_test.ts b/packages/0x.js/test/token_transfer_proxy_wrapper_test.ts
index fb003634a..9415d7c08 100644
--- a/packages/0x.js/test/token_transfer_proxy_wrapper_test.ts
+++ b/packages/0x.js/test/token_transfer_proxy_wrapper_test.ts
@@ -1,14 +1,13 @@
-import { web3Factory } from '@0xproject/dev-utils';
 import * as chai from 'chai';
 
 import { ZeroEx } from '../src';
 
 import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
+import { provider } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
-const web3 = web3Factory.create();
 
 describe('TokenTransferProxyWrapper', () => {
     let zeroEx: ZeroEx;
@@ -16,7 +15,7 @@ describe('TokenTransferProxyWrapper', () => {
         networkId: constants.TESTRPC_NETWORK_ID,
     };
     before(async () => {
-        zeroEx = new ZeroEx(web3.currentProvider, config);
+        zeroEx = new ZeroEx(provider, config);
     });
     describe('#isAuthorizedAsync', () => {
         it('should return false if the address is not authorized', async () => {
diff --git a/packages/0x.js/test/token_wrapper_test.ts b/packages/0x.js/test/token_wrapper_test.ts
index 0c6335d5e..04fd943aa 100644
--- a/packages/0x.js/test/token_wrapper_test.ts
+++ b/packages/0x.js/test/token_wrapper_test.ts
@@ -1,9 +1,10 @@
-import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
+import { BlockchainLifecycle, devConstants } from '@0xproject/dev-utils';
+import { EmptyWalletSubprovider } from '@0xproject/subproviders';
+import { Provider } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
-import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
 import 'mocha';
-import * as Web3 from 'web3';
+import Web3ProviderEngine = require('web3-provider-engine');
 
 import {
     ApprovalContractEventArgs,
@@ -22,7 +23,7 @@ import { chaiSetup } from './utils/chai_setup';
 import { constants } from './utils/constants';
 import { reportNodeCallbackErrors } from './utils/report_callback_errors';
 import { TokenUtils } from './utils/token_utils';
-import { web3, web3Wrapper } from './utils/web3_wrapper';
+import { provider, web3Wrapper } from './utils/web3_wrapper';
 
 chaiSetup.configure();
 const expect = chai.expect;
@@ -39,7 +40,7 @@ describe('TokenWrapper', () => {
         networkId: constants.TESTRPC_NETWORK_ID,
     };
     before(async () => {
-        zeroEx = new ZeroEx(web3.currentProvider, config);
+        zeroEx = new ZeroEx(provider, config);
         userAddresses = await zeroEx.getAvailableAddressesAsync();
         tokens = await zeroEx.tokenRegistry.getTokensAsync();
         tokenUtils = new TokenUtils(tokens);
@@ -164,7 +165,7 @@ describe('TokenWrapper', () => {
         });
     });
     describe('#getBalanceAsync', () => {
-        describe('With web3 provider with accounts', () => {
+        describe('With provider with accounts', () => {
             it('should return the balance for an existing ERC20 token', async () => {
                 const token = tokens[0];
                 const ownerAddress = coinbase;
@@ -187,14 +188,14 @@ describe('TokenWrapper', () => {
                 return expect(balance).to.be.bignumber.equal(expectedBalance);
             });
         });
-        describe('With web3 provider without accounts', () => {
+        describe('With provider without accounts', () => {
             let zeroExWithoutAccounts: ZeroEx;
             before(async () => {
                 const hasAddresses = false;
-                const web3WithoutAccounts = web3Factory.create({ hasAddresses });
-                zeroExWithoutAccounts = new ZeroEx(web3WithoutAccounts.currentProvider, config);
+                const emptyWalletProvider = addEmptyWalletSubprovider(provider);
+                zeroExWithoutAccounts = new ZeroEx(emptyWalletProvider, config);
             });
-            it('should return balance even when called with Web3 provider instance without addresses', async () => {
+            it('should return balance even when called with provider instance without addresses', async () => {
                 const token = tokens[0];
                 const ownerAddress = coinbase;
                 const balance = await zeroExWithoutAccounts.token.getBalanceAsync(token.address, ownerAddress);
@@ -277,7 +278,7 @@ describe('TokenWrapper', () => {
         });
     });
     describe('#getAllowanceAsync', () => {
-        describe('With web3 provider with accounts', () => {
+        describe('With provider with accounts', () => {
             it('should get the proxy allowance', async () => {
                 const token = tokens[0];
                 const ownerAddress = coinbase;
@@ -299,12 +300,12 @@ describe('TokenWrapper', () => {
                 return expect(allowance).to.be.bignumber.equal(expectedAllowance);
             });
         });
-        describe('With web3 provider without accounts', () => {
+        describe('With provider without accounts', () => {
             let zeroExWithoutAccounts: ZeroEx;
             before(async () => {
                 const hasAddresses = false;
-                const web3WithoutAccounts = web3Factory.create({ hasAddresses });
-                zeroExWithoutAccounts = new ZeroEx(web3WithoutAccounts.currentProvider, config);
+                const emptyWalletProvider = addEmptyWalletSubprovider(provider);
+                zeroExWithoutAccounts = new ZeroEx(emptyWalletProvider, config);
             });
             it('should get the proxy allowance', async () => {
                 const token = tokens[0];
@@ -424,8 +425,7 @@ describe('TokenWrapper', () => {
                 );
                 zeroEx.token.subscribe(tokenAddress, TokenEvents.Transfer, indexFilterValues, callbackNeverToBeCalled);
                 const callbackToBeCalled = reportNodeCallbackErrors(done)();
-                const newProvider = web3Factory.getRpcProvider();
-                zeroEx.setProvider(newProvider, constants.TESTRPC_NETWORK_ID);
+                zeroEx.setProvider(provider, constants.TESTRPC_NETWORK_ID);
                 zeroEx.token.subscribe(tokenAddress, TokenEvents.Transfer, indexFilterValues, callbackToBeCalled);
                 await zeroEx.token.transferAsync(tokenAddress, coinbase, addressWithoutFunds, transferAmount);
             })().catch(done);
@@ -515,3 +515,14 @@ describe('TokenWrapper', () => {
     });
 });
 // tslint:disable:max-file-line-count
+
+function addEmptyWalletSubprovider(p: Provider): Provider {
+    const providerEngine = new Web3ProviderEngine();
+    providerEngine.addProvider(new EmptyWalletSubprovider());
+    const currentSubproviders = (p as any)._providers;
+    for (const subprovider of currentSubproviders) {
+        providerEngine.addProvider(subprovider);
+    }
+    providerEngine.start();
+    return providerEngine;
+}
diff --git a/packages/contracts/migrations/index.ts b/packages/0x.js/test/utils/deployer.ts
index 47ae7044d..b092322e2 100644
--- a/packages/contracts/migrations/index.ts
+++ b/packages/0x.js/test/utils/deployer.ts
@@ -2,19 +2,17 @@ import { Deployer } from '@0xproject/deployer';
 import { devConstants } from '@0xproject/dev-utils';
 import * as path from 'path';
 
-import { constants } from '../util/constants';
+import { constants } from './constants';
 
-import { runMigrationsAsync } from './migrate';
+import { provider } from './web3_wrapper';
 
+const artifactsDir = path.resolve('test', 'artifacts');
 const deployerOpts = {
-    artifactsDir: path.resolve('src', 'artifacts'),
-    jsonrpcUrl: devConstants.RPC_URL,
+    artifactsDir,
+    provider,
     networkId: constants.TESTRPC_NETWORK_ID,
     defaults: {
         gas: devConstants.GAS_ESTIMATE,
     },
 };
-
 export const deployer = new Deployer(deployerOpts);
-
-runMigrationsAsync(deployer).catch(console.log);
diff --git a/packages/0x.js/test/utils/web3_wrapper.ts b/packages/0x.js/test/utils/web3_wrapper.ts
index 4b374fc7e..b7b3f0b7f 100644
--- a/packages/0x.js/test/utils/web3_wrapper.ts
+++ b/packages/0x.js/test/utils/web3_wrapper.ts
@@ -1,6 +1,12 @@
-import { web3Factory } from '@0xproject/dev-utils';
+import { devConstants, web3Factory } from '@0xproject/dev-utils';
+import { Provider } from '@0xproject/types';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as Web3 from 'web3';
 
-export const web3 = web3Factory.create();
-export const web3Wrapper = new Web3Wrapper(web3.currentProvider);
+import { constants } from './constants';
+
+const web3 = web3Factory.create({ shouldUseInProcessGanache: true });
+const provider: Provider = web3.currentProvider;
+const web3Wrapper = new Web3Wrapper(web3.currentProvider);
+
+export { provider, web3Wrapper };
diff --git a/packages/abi-gen/CHANGELOG.json b/packages/abi-gen/CHANGELOG.json
index e720cc04b..84f3e318c 100644
--- a/packages/abi-gen/CHANGELOG.json
+++ b/packages/abi-gen/CHANGELOG.json
@@ -1,5 +1,14 @@
 [
     {
+        "timestamp": 1523462196,
+        "version": "0.2.10",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1522673609,
         "version": "0.2.9",
         "changes": [
diff --git a/packages/abi-gen/CHANGELOG.md b/packages/abi-gen/CHANGELOG.md
index 4b8158ebf..5b3b68af3 100644
--- a/packages/abi-gen/CHANGELOG.md
+++ b/packages/abi-gen/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.2.10 - _April 11, 2018_
+
+    * Dependencies updated
+
 ## v0.2.9 - _April 2, 2018_
 
     * Dependencies updated
diff --git a/packages/abi-gen/package.json b/packages/abi-gen/package.json
index f6252e5ef..6aabb054a 100644
--- a/packages/abi-gen/package.json
+++ b/packages/abi-gen/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/abi-gen",
-    "version": "0.2.9",
+    "version": "0.2.10",
     "description": "Generate contract wrappers from ABI and handlebars templates",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
@@ -24,9 +24,9 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/abi-gen/README.md",
     "dependencies": {
-        "@0xproject/types": "^0.5.0",
-        "@0xproject/typescript-typings": "^0.0.3",
-        "@0xproject/utils": "^0.5.0",
+        "@0xproject/types": "^0.6.0",
+        "@0xproject/typescript-typings": "^0.1.0",
+        "@0xproject/utils": "^0.5.1",
         "chalk": "^2.3.0",
         "glob": "^7.1.2",
         "handlebars": "^4.0.11",
@@ -36,8 +36,8 @@
         "yargs": "^10.0.3"
     },
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.16",
-        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/monorepo-scripts": "^0.1.17",
+        "@0xproject/tslint-config": "^0.4.15",
         "@types/glob": "^5.0.33",
         "@types/handlebars": "^4.0.36",
         "@types/mkdirp": "^0.5.1",
diff --git a/packages/assert/CHANGELOG.json b/packages/assert/CHANGELOG.json
index 717b803af..9889d0efa 100644
--- a/packages/assert/CHANGELOG.json
+++ b/packages/assert/CHANGELOG.json
@@ -1,5 +1,14 @@
 [
     {
+        "timestamp": 1523462196,
+        "version": "0.2.6",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1522673609,
         "version": "0.2.5",
         "changes": [
diff --git a/packages/assert/CHANGELOG.md b/packages/assert/CHANGELOG.md
index aeb6949ce..f482ba92b 100644
--- a/packages/assert/CHANGELOG.md
+++ b/packages/assert/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.2.6 - _April 11, 2018_
+
+    * Dependencies updated
+
 ## v0.2.5 - _April 2, 2018_
 
     * Dependencies updated
diff --git a/packages/assert/package.json b/packages/assert/package.json
index 4e495d05f..8ed287c25 100644
--- a/packages/assert/package.json
+++ b/packages/assert/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/assert",
-    "version": "0.2.5",
+    "version": "0.2.6",
     "description": "Provides a standard way of performing type and schema validation across 0x projects",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
@@ -9,7 +9,7 @@
         "build": "tsc && copyfiles -u 3 './lib/src/monorepo_scripts/**/*' ./scripts",
         "clean": "shx rm -rf lib test_temp scripts",
         "lint": "tslint --project . 'src/**/*.ts' 'test/**/*.ts'",
-        "run_mocha": "mocha lib/test/**/*_test.js",
+        "run_mocha": "mocha lib/test/**/*_test.js --exit",
         "prepublishOnly": "run-p build",
         "test": "run-s clean build run_mocha",
         "test:coverage": "nyc npm run test --all && yarn coverage:report:lcov",
@@ -27,8 +27,8 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/assert/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.16",
-        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/monorepo-scripts": "^0.1.17",
+        "@0xproject/tslint-config": "^0.4.15",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^2.2.42",
         "@types/valid-url": "^1.0.2",
@@ -43,9 +43,9 @@
         "typescript": "2.7.1"
     },
     "dependencies": {
-        "@0xproject/json-schemas": "^0.7.19",
-        "@0xproject/typescript-typings": "^0.0.3",
-        "@0xproject/utils": "^0.5.0",
+        "@0xproject/json-schemas": "^0.7.20",
+        "@0xproject/typescript-typings": "^0.1.0",
+        "@0xproject/utils": "^0.5.1",
         "lodash": "^4.17.4",
         "valid-url": "^1.0.9"
     },
diff --git a/packages/base-contract/CHANGELOG.json b/packages/base-contract/CHANGELOG.json
index da957ec83..ede16cdc4 100644
--- a/packages/base-contract/CHANGELOG.json
+++ b/packages/base-contract/CHANGELOG.json
@@ -6,7 +6,8 @@
                 "note": "Contract wrappers now accept Provider and defaults instead of Web3Wrapper",
                 "pr": 501
             }
-        ]
+        ],
+        "timestamp": 1523462196
     },
     {
         "version": "0.1.0",
diff --git a/packages/base-contract/CHANGELOG.md b/packages/base-contract/CHANGELOG.md
index aebb0a5d9..851df7b62 100644
--- a/packages/base-contract/CHANGELOG.md
+++ b/packages/base-contract/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.2.0 - _April 11, 2018_
+
+    * Contract wrappers now accept Provider and defaults instead of Web3Wrapper (#501)
+
 ## v0.1.0 - _April 2, 2018_
 
     * Add tests for traversing ABI tree (#485)
diff --git a/packages/base-contract/package.json b/packages/base-contract/package.json
index 449986119..5e14b7de5 100644
--- a/packages/base-contract/package.json
+++ b/packages/base-contract/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/base-contract",
-    "version": "0.1.0",
+    "version": "0.2.0",
     "description": "0x Base TS contract",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
@@ -26,8 +26,8 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/base-contract/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.16",
-        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/monorepo-scripts": "^0.1.17",
+        "@0xproject/tslint-config": "^0.4.15",
         "@types/lodash": "4.14.104",
         "chai": "^4.0.1",
         "copyfiles": "^1.2.0",
@@ -38,10 +38,10 @@
         "typescript": "2.7.1"
     },
     "dependencies": {
-        "@0xproject/types": "^0.5.0",
-        "@0xproject/typescript-typings": "^0.0.3",
-        "@0xproject/utils": "^0.5.0",
-        "@0xproject/web3-wrapper": "^0.5.0",
+        "@0xproject/types": "^0.6.0",
+        "@0xproject/typescript-typings": "^0.1.0",
+        "@0xproject/utils": "^0.5.1",
+        "@0xproject/web3-wrapper": "^0.6.0",
         "ethers-contracts": "^2.2.1",
         "lodash": "^4.17.4"
     },
diff --git a/packages/connect/CHANGELOG.json b/packages/connect/CHANGELOG.json
index 239dd23a4..a2b5c94d3 100644
--- a/packages/connect/CHANGELOG.json
+++ b/packages/connect/CHANGELOG.json
@@ -1,5 +1,14 @@
 [
     {
+        "timestamp": 1523462196,
+        "version": "0.6.9",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1522673609,
         "version": "0.6.8",
         "changes": [
diff --git a/packages/connect/CHANGELOG.md b/packages/connect/CHANGELOG.md
index 2e50b9e2a..99b5746b5 100644
--- a/packages/connect/CHANGELOG.md
+++ b/packages/connect/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.6.9 - _April 11, 2018_
+
+    * Dependencies updated
+
 ## v0.6.8 - _April 2, 2018_
 
     * Dependencies updated
diff --git a/packages/connect/package.json b/packages/connect/package.json
index f0a01cff7..8fe29a1ad 100644
--- a/packages/connect/package.json
+++ b/packages/connect/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/connect",
-    "version": "0.6.8",
+    "version": "0.6.9",
     "description": "A javascript library for interacting with the standard relayer api",
     "keywords": [
         "connect",
@@ -17,7 +17,7 @@
         "clean": "shx rm -rf lib test_temp scripts",
         "copy_test_fixtures": "copyfiles -u 2 './test/fixtures/**/*.json' ./lib/test/fixtures",
         "lint": "tslint --project . 'src/**/*.ts' 'test/**/*.ts'",
-        "run_mocha": "mocha lib/test/**/*_test.js",
+        "run_mocha": "mocha lib/test/**/*_test.js --exit",
         "test": "run-s clean build copy_test_fixtures run_mocha",
         "test:coverage": "nyc npm run test --all && yarn coverage:report:lcov",
         "coverage:report:lcov": "nyc report --reporter=text-lcov > coverage/lcov.info",
@@ -50,19 +50,19 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/connect/README.md",
     "dependencies": {
-        "@0xproject/assert": "^0.2.5",
-        "@0xproject/json-schemas": "^0.7.19",
-        "@0xproject/types": "^0.5.0",
-        "@0xproject/typescript-typings": "^0.0.3",
-        "@0xproject/utils": "^0.5.0",
+        "@0xproject/assert": "^0.2.6",
+        "@0xproject/json-schemas": "^0.7.20",
+        "@0xproject/types": "^0.6.0",
+        "@0xproject/typescript-typings": "^0.1.0",
+        "@0xproject/utils": "^0.5.1",
         "isomorphic-fetch": "^2.2.1",
         "lodash": "^4.17.4",
         "query-string": "^5.0.1",
         "websocket": "^1.0.25"
     },
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.16",
-        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/monorepo-scripts": "^0.1.17",
+        "@0xproject/tslint-config": "^0.4.15",
         "@types/fetch-mock": "^5.12.1",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^2.2.42",
diff --git a/packages/contracts/README.md b/packages/contracts/README.md
index 286ef019c..16e253549 100644
--- a/packages/contracts/README.md
+++ b/packages/contracts/README.md
@@ -72,17 +72,6 @@ yarn lint
 
 ### Run Tests
 
-Before running the tests, you will need to spin up a [TestRPC](https://www.npmjs.com/package/ethereumjs-testrpc) instance.
-
-In a separate terminal, start TestRPC (a convenience command is provided as part of the [0x.js monorepo](https://github.com/0xProject/0x-monorepo))
-
-```bash
-cd ../..
-yarn testrpc
-```
-
-Then in your main terminal run
-
 ```bash
 yarn test
 ```
diff --git a/packages/contracts/migrations/config/multisig_sample.ts b/packages/contracts/migrations/config/multisig_sample.ts
deleted file mode 100644
index bc2502fca..000000000
--- a/packages/contracts/migrations/config/multisig_sample.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-import { MultiSigConfigByNetwork } from '../types';
-
-// Make a copy of this file named `multisig.js` and input custom params as needed
-export const multiSig: MultiSigConfigByNetwork = {
-    kovan: {
-        owners: [],
-        confirmationsRequired: 0,
-        secondsRequired: 0,
-    },
-};
diff --git a/packages/contracts/migrations/types.ts b/packages/contracts/migrations/types.ts
deleted file mode 100644
index 58d1e5b4f..000000000
--- a/packages/contracts/migrations/types.ts
+++ /dev/null
@@ -1,23 +0,0 @@
-export interface MultiSigConfig {
-    owners: string[];
-    confirmationsRequired: number;
-    secondsRequired: number;
-}
-
-export interface MultiSigConfigByNetwork {
-    [networkName: string]: MultiSigConfig;
-}
-
-export interface Token {
-    address?: string;
-    name: string;
-    symbol: string;
-    decimals: number;
-    ipfsHash: string;
-    swarmHash: string;
-}
-
-export interface TokenInfoByNetwork {
-    development: Token[];
-    live: Token[];
-}
diff --git a/packages/contracts/package.json b/packages/contracts/package.json
index 6b7776422..ad338bd5f 100644
--- a/packages/contracts/package.json
+++ b/packages/contracts/package.json
@@ -1,7 +1,7 @@
 {
     "private": true,
     "name": "contracts",
-    "version": "2.1.21",
+    "version": "2.1.22",
     "description": "Smart contract components of 0x protocol",
     "main": "index.js",
     "directories": {
@@ -10,16 +10,15 @@
     "scripts": {
         "build:watch": "tsc -w",
         "prebuild": "run-s clean compile copy_artifacts generate_contract_wrappers",
-        "copy_artifacts": "copyfiles './src/artifacts/**/*' ./lib",
+        "copy_artifacts": "copyfiles -u 4 '../migrations/src/artifacts/**/*' ./lib/src/artifacts;",
         "build": "tsc",
         "test": "run-s build run_mocha",
         "test:coverage": "SOLIDITY_COVERAGE=true run-s build run_mocha coverage:report:text coverage:report:lcov",
         "run_mocha": "mocha 'lib/test/**/*.js' --timeout 100000 --bail --exit",
         "compile:comment": "Yarn workspaces do not link binaries correctly so we need to reference them directly https://github.com/yarnpkg/yarn/issues/3846",
-        "compile": "node ../deployer/lib/src/cli.js compile --contracts ${npm_package_config_contracts} --contract-dirs src/contracts --artifacts-dir src/artifacts",
+        "compile": "node ../deployer/lib/src/cli.js compile --contracts ${npm_package_config_contracts} --contract-dirs src/contracts --artifacts-dir ../migrations/src/artifacts",
         "clean": "shx rm -rf ./lib",
         "generate_contract_wrappers": "node ../abi-gen/lib/index.js --abis  ${npm_package_config_abis} --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/contract_wrappers/generated --backend ethers && prettier --write 'src/contract_wrappers/generated/**.ts'",
-        "migrate": "yarn build && yarn compile && node ./lib/migrations/index.js",
         "lint": "tslint --project . 'migrations/**/*.ts' 'test/**/*.ts' 'util/**/*.ts' 'deploy/**/*.ts'",
         "coverage:report:text": "istanbul report text",
         "coverage:report:html": "istanbul report html && open coverage/index.html",
@@ -27,7 +26,7 @@
         "test:circleci": "yarn test:coverage"
     },
     "config": {
-        "abis": "src/artifacts/@(DummyToken|TokenTransferProxy|Exchange|TokenRegistry|MultiSigWallet|MultiSigWalletWithTimeLock|MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress|TokenRegistry|ZRXToken|Arbitrage|EtherDelta|AccountLevels).json",
+        "abis": "../migrations/src/artifacts/@(DummyToken|TokenTransferProxy|Exchange|TokenRegistry|MultiSigWallet|MultiSigWalletWithTimeLock|MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress|TokenRegistry|ZRXToken|Arbitrage|EtherDelta|AccountLevels).json",
         "contracts": "Exchange,DummyToken,ZRXToken,Token,WETH9,TokenTransferProxy,MultiSigWallet,MultiSigWalletWithTimeLock,MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress,MaliciousToken,TokenRegistry,Arbitrage,EtherDelta,AccountLevels"
     },
     "repository": {
@@ -41,8 +40,8 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/contracts/README.md",
     "devDependencies": {
-        "@0xproject/dev-utils": "^0.3.4",
-        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/dev-utils": "^0.3.5",
+        "@0xproject/tslint-config": "^0.4.15",
         "@types/lodash": "4.14.104",
         "@types/node": "^8.0.53",
         "@types/yargs": "^10.0.0",
@@ -61,12 +60,12 @@
         "yargs": "^10.0.3"
     },
     "dependencies": {
-        "0x.js": "^0.35.0",
-        "@0xproject/deployer": "^0.3.5",
-        "@0xproject/types": "^0.5.0",
-        "@0xproject/typescript-typings": "^0.0.3",
-        "@0xproject/utils": "^0.5.0",
-        "@0xproject/web3-wrapper": "^0.5.0",
+        "0x.js": "^0.36.0",
+        "@0xproject/deployer": "^0.4.0",
+        "@0xproject/types": "^0.6.0",
+        "@0xproject/typescript-typings": "^0.1.0",
+        "@0xproject/utils": "^0.5.1",
+        "@0xproject/web3-wrapper": "^0.6.0",
         "bn.js": "^4.11.8",
         "ethereumjs-abi": "^0.6.4",
         "ethereumjs-util": "^5.1.1",
diff --git a/packages/contracts/test/multi_sig_with_time_lock.ts b/packages/contracts/test/multi_sig_with_time_lock.ts
index ea74d4c7f..b7604457f 100644
--- a/packages/contracts/test/multi_sig_with_time_lock.ts
+++ b/packages/contracts/test/multi_sig_with_time_lock.ts
@@ -46,7 +46,7 @@ describe('MultiSigWalletWithTimeLock', () => {
 
     describe('changeTimeLock', () => {
         describe('initially non-time-locked', async () => {
-            before('deploy a walet', async () => {
+            before('deploy a wallet', async () => {
                 const multiSigInstance = await deployer.deployAsync(ContractName.MultiSigWalletWithTimeLock, [
                     owners,
                     SIGNATURES_REQUIRED,
@@ -143,7 +143,7 @@ describe('MultiSigWalletWithTimeLock', () => {
             });
         });
         describe('initially time-locked', async () => {
-            before('deploy a walet', async () => {
+            before('deploy a wallet', async () => {
                 const multiSigInstance = await deployer.deployAsync(ContractName.MultiSigWalletWithTimeLock, [
                     owners,
                     SIGNATURES_REQUIRED,
diff --git a/packages/contracts/test/token_registry.ts b/packages/contracts/test/token_registry.ts
index 12fc52dbc..4c404176b 100644
--- a/packages/contracts/test/token_registry.ts
+++ b/packages/contracts/test/token_registry.ts
@@ -1,6 +1,6 @@
 import { ZeroEx } from '0x.js';
 import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
-import { BigNumber } from '@0xproject/utils';
+import { BigNumber, NULL_BYTES } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as chai from 'chai';
 import ethUtil = require('ethereumjs-util');
@@ -66,8 +66,8 @@ describe('TokenRegistry', () => {
         name: '',
         symbol: '',
         decimals: 0,
-        ipfsHash: constants.NULL_BYTES,
-        swarmHash: constants.NULL_BYTES,
+        ipfsHash: NULL_BYTES,
+        swarmHash: NULL_BYTES,
     };
 
     describe('addToken', () => {
diff --git a/packages/contracts/test/utils/deployer.ts b/packages/contracts/test/utils/deployer.ts
index 45f79a2a4..2f0951475 100644
--- a/packages/contracts/test/utils/deployer.ts
+++ b/packages/contracts/test/utils/deployer.ts
@@ -8,7 +8,7 @@ import { web3 } from './web3_wrapper';
 
 const deployerOpts = {
     provider: web3.currentProvider,
-    artifactsDir: path.resolve('src', 'artifacts'),
+    artifactsDir: path.resolve('lib', 'src', 'artifacts'),
     networkId: constants.TESTRPC_NETWORK_ID,
     defaults: {
         gas: devConstants.GAS_ESTIMATE,
diff --git a/packages/contracts/test/utils/web3_wrapper.ts b/packages/contracts/test/utils/web3_wrapper.ts
index 1a711dad2..dd6f198c4 100644
--- a/packages/contracts/test/utils/web3_wrapper.ts
+++ b/packages/contracts/test/utils/web3_wrapper.ts
@@ -1,7 +1,8 @@
 import { web3Factory } from '@0xproject/dev-utils';
+import { Provider } from '@0xproject/types';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 
-const web3ProviderConfig = { shouldUseInProcessGanache: true };
-export const web3 = web3Factory.create(web3ProviderConfig);
+const providerConfigs = { shouldUseInProcessGanache: true };
+export const web3 = web3Factory.create(providerConfigs);
 export const provider = web3.currentProvider;
 export const web3Wrapper = new Web3Wrapper(provider);
diff --git a/packages/contracts/util/constants.ts b/packages/contracts/util/constants.ts
index 9bb090a2a..d1152e683 100644
--- a/packages/contracts/util/constants.ts
+++ b/packages/contracts/util/constants.ts
@@ -4,7 +4,6 @@ const DUMMY_TOKEN_DECIMALS = 18;
 const DUMMY_TOKEN_TOTAL_SUPPLY = 0;
 
 export const constants = {
-    NULL_BYTES: '0x',
     INVALID_OPCODE: 'invalid opcode',
     REVERT: 'revert',
     TESTRPC_NETWORK_ID: 50,
diff --git a/packages/deployer/CHANGELOG.json b/packages/deployer/CHANGELOG.json
index f9691466b..b130405dc 100644
--- a/packages/deployer/CHANGELOG.json
+++ b/packages/deployer/CHANGELOG.json
@@ -6,7 +6,8 @@
                 "note": "Changed the config key `web3Provider` to `provider` to be consistent with other tools",
                 "pr": 501
             }
-        ]
+        ],
+        "timestamp": 1523462196
     },
     {
         "version": "0.3.5",
diff --git a/packages/deployer/CHANGELOG.md b/packages/deployer/CHANGELOG.md
index b11aa988c..4b49092ae 100644
--- a/packages/deployer/CHANGELOG.md
+++ b/packages/deployer/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.4.0 - _April 11, 2018_
+
+    * Changed the config key `web3Provider` to `provider` to be consistent with other tools (#501)
+
 ## v0.3.5 - _April 2, 2018_
 
     * Don't try to write contract artifact if an error occured (#485)
diff --git a/packages/deployer/package.json b/packages/deployer/package.json
index 34d27081b..1050c095f 100644
--- a/packages/deployer/package.json
+++ b/packages/deployer/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/deployer",
-    "version": "0.3.5",
+    "version": "0.4.0",
     "description": "Smart contract deployer of 0x protocol",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
@@ -8,7 +8,7 @@
         "build:watch": "tsc -w",
         "build": "yarn clean && copyfiles 'test/fixtures/contracts/**/*' ./lib && tsc && copyfiles -u 3 './lib/src/monorepo_scripts/**/*' ./scripts",
         "test": "run-s build run_mocha",
-        "run_mocha": "mocha lib/test/*_test.js",
+        "run_mocha": "mocha lib/test/*_test.js --bail --exit",
         "test:coverage": "nyc npm run test --all && yarn coverage:report:lcov",
         "coverage:report:lcov": "nyc report --reporter=text-lcov > coverage/lcov.info",
         "compile": "npm run build; node lib/src/cli.js compile",
@@ -47,9 +47,9 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/deployer/README.md",
     "devDependencies": {
-        "@0xproject/dev-utils": "^0.2.1",
-        "@0xproject/monorepo-scripts": "^0.1.16",
-        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/dev-utils": "^0.3.4",
+        "@0xproject/monorepo-scripts": "^0.1.17",
+        "@0xproject/tslint-config": "^0.4.15",
         "@types/require-from-string": "^1.2.0",
         "@types/semver": "^5.5.0",
         "@types/yargs": "^11.0.0",
@@ -68,11 +68,11 @@
         "web3-typescript-typings": "^0.10.2"
     },
     "dependencies": {
-        "@0xproject/json-schemas": "^0.7.19",
-        "@0xproject/types": "^0.5.0",
-        "@0xproject/typescript-typings": "^0.0.3",
-        "@0xproject/utils": "^0.5.0",
-        "@0xproject/web3-wrapper": "^0.5.0",
+        "@0xproject/json-schemas": "^0.7.20",
+        "@0xproject/types": "^0.6.0",
+        "@0xproject/typescript-typings": "^0.1.0",
+        "@0xproject/utils": "^0.5.1",
+        "@0xproject/web3-wrapper": "^0.6.0",
         "ethereumjs-util": "^5.1.1",
         "isomorphic-fetch": "^2.2.1",
         "lodash": "^4.17.4",
diff --git a/packages/deployer/src/cli.ts b/packages/deployer/src/cli.ts
index 62afe0d4c..7b32187c4 100644
--- a/packages/deployer/src/cli.ts
+++ b/packages/deployer/src/cli.ts
@@ -41,8 +41,8 @@ async function onCompileCommandAsync(argv: CliOptions): Promise<void> {
  */
 async function onDeployCommandAsync(argv: CliOptions): Promise<void> {
     const url = argv.jsonrpcUrl;
-    const web3Provider = new Web3.providers.HttpProvider(url);
-    const web3Wrapper = new Web3Wrapper(web3Provider);
+    const provider = new Web3.providers.HttpProvider(url);
+    const web3Wrapper = new Web3Wrapper(provider);
     const networkId = await web3Wrapper.getNetworkIdAsync();
     const compilerOpts: CompilerOptions = {
         contractDirs: getContractDirectoriesFromList(argv.contractDirs),
diff --git a/packages/deployer/src/deployer.ts b/packages/deployer/src/deployer.ts
index 84392997c..ad05417b1 100644
--- a/packages/deployer/src/deployer.ts
+++ b/packages/deployer/src/deployer.ts
@@ -38,17 +38,17 @@ export class Deployer {
         this._artifactsDir = opts.artifactsDir;
         this._networkId = opts.networkId;
         this._defaults = opts.defaults;
-        let web3Provider: Provider;
+        let provider: Provider;
         if (_.isUndefined((opts as ProviderDeployerOptions).provider)) {
             const jsonrpcUrl = (opts as UrlDeployerOptions).jsonrpcUrl;
             if (_.isUndefined(jsonrpcUrl)) {
-                throw new Error(`Deployer options don't contain web3Provider nor jsonrpcUrl. Please pass one of them`);
+                throw new Error(`Deployer options don't contain provider nor jsonrpcUrl. Please pass one of them`);
             }
-            web3Provider = new Web3.providers.HttpProvider(jsonrpcUrl);
+            provider = new Web3.providers.HttpProvider(jsonrpcUrl);
         } else {
-            web3Provider = (opts as ProviderDeployerOptions).provider;
+            provider = (opts as ProviderDeployerOptions).provider;
         }
-        this.web3Wrapper = new Web3Wrapper(web3Provider, this._defaults);
+        this.web3Wrapper = new Web3Wrapper(provider, this._defaults);
     }
     /**
      * Loads a contract's corresponding artifacts and deploys it with the supplied constructor arguments.
@@ -170,7 +170,7 @@ export class Deployer {
             const contractArtifact: ContractArtifact = require(artifactPath);
             return contractArtifact;
         } catch (err) {
-            throw new Error(`Artifact not found for contract: ${contractName}`);
+            throw new Error(`Artifact not found for contract: ${contractName} at ${artifactPath}`);
         }
     }
     /**
diff --git a/packages/deployer/test/deployer_test.ts b/packages/deployer/test/deployer_test.ts
index 050cf7d02..a213932f9 100644
--- a/packages/deployer/test/deployer_test.ts
+++ b/packages/deployer/test/deployer_test.ts
@@ -14,6 +14,7 @@ import {
 
 import { constructor_args, exchange_binary } from './fixtures/exchange_bin';
 import { constants } from './util/constants';
+import { provider } from './util/provider';
 
 const expect = chai.expect;
 
@@ -36,7 +37,7 @@ describe('#Deployer', () => {
     const deployerOpts = {
         artifactsDir,
         networkId: constants.networkId,
-        jsonrpcUrl: constants.jsonrpcUrl,
+        provider,
         defaults: {
             gasPrice: constants.gasPrice,
         },
diff --git a/packages/deployer/test/util/constants.ts b/packages/deployer/test/util/constants.ts
index 5385b8d17..b93081a80 100644
--- a/packages/deployer/test/util/constants.ts
+++ b/packages/deployer/test/util/constants.ts
@@ -2,7 +2,6 @@ import { BigNumber } from '@0xproject/utils';
 
 export const constants = {
     networkId: 0,
-    jsonrpcUrl: 'http://localhost:8545',
     optimizerEnabled: false,
     gasPrice: new BigNumber(20000000000),
     timeoutMs: 30000,
diff --git a/packages/deployer/test/util/provider.ts b/packages/deployer/test/util/provider.ts
new file mode 100644
index 000000000..e0fcb362a
--- /dev/null
+++ b/packages/deployer/test/util/provider.ts
@@ -0,0 +1,9 @@
+import { web3Factory } from '@0xproject/dev-utils';
+import { Provider } from '@0xproject/types';
+import * as Web3 from 'web3';
+
+const providerConfigs = { shouldUseInProcessGanache: true };
+const web3Instance = web3Factory.create(providerConfigs);
+const provider: Provider = web3Instance.currentProvider;
+
+export { provider };
diff --git a/packages/dev-utils/CHANGELOG.json b/packages/dev-utils/CHANGELOG.json
index a9e8e5a4a..b5dd3732d 100644
--- a/packages/dev-utils/CHANGELOG.json
+++ b/packages/dev-utils/CHANGELOG.json
@@ -1,5 +1,14 @@
 [
     {
+        "timestamp": 1523462196,
+        "version": "0.3.5",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1522673609,
         "version": "0.3.4",
         "changes": [
diff --git a/packages/dev-utils/CHANGELOG.md b/packages/dev-utils/CHANGELOG.md
index 1f8062693..b63fad04c 100644
--- a/packages/dev-utils/CHANGELOG.md
+++ b/packages/dev-utils/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.3.5 - _April 11, 2018_
+
+    * Dependencies updated
+
 ## v0.3.4 - _April 2, 2018_
 
     * Dependencies updated
diff --git a/packages/dev-utils/package.json b/packages/dev-utils/package.json
index dd7712065..5161e66e6 100644
--- a/packages/dev-utils/package.json
+++ b/packages/dev-utils/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/dev-utils",
-    "version": "0.3.4",
+    "version": "0.3.5",
     "description": "0x dev TS utils",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
@@ -26,8 +26,8 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/dev-utils/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.16",
-        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/monorepo-scripts": "^0.1.17",
+        "@0xproject/tslint-config": "^0.4.15",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^2.2.42",
         "chai": "^4.0.1",
@@ -40,11 +40,11 @@
         "typescript": "2.7.1"
     },
     "dependencies": {
-        "@0xproject/sol-cov": "^0.0.6",
-        "@0xproject/subproviders": "^0.8.4",
-        "@0xproject/types": "^0.5.0",
-        "@0xproject/typescript-typings": "^0.0.3",
-        "@0xproject/web3-wrapper": "^0.5.0",
+        "@0xproject/sol-cov": "^0.0.7",
+        "@0xproject/subproviders": "^0.8.5",
+        "@0xproject/types": "^0.6.0",
+        "@0xproject/typescript-typings": "^0.1.0",
+        "@0xproject/web3-wrapper": "^0.6.0",
         "lodash": "^4.17.4",
         "web3": "^0.20.0",
         "web3-provider-engine": "^13.0.1"
diff --git a/packages/dev-utils/test/blockchain_lifecycle_test.ts b/packages/dev-utils/test/blockchain_lifecycle_test.ts
index 5ed67e012..2cfad9644 100644
--- a/packages/dev-utils/test/blockchain_lifecycle_test.ts
+++ b/packages/dev-utils/test/blockchain_lifecycle_test.ts
@@ -8,8 +8,8 @@ import { BlockchainLifecycle, web3Factory } from '../src';
 const expect = chai.expect;
 
 describe('BlockchainLifecycle tests', () => {
-    const web3Provider = web3Factory.getRpcProvider();
-    const web3Wrapper = new Web3Wrapper(web3Provider);
+    const provider = web3Factory.getRpcProvider({ shouldUseInProcessGanache: true });
+    const web3Wrapper = new Web3Wrapper(provider);
     const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
     describe('#startAsync/revertAsync', () => {
         it('reverts changes in between', async () => {
diff --git a/packages/dev-utils/test/rpc_test.ts b/packages/dev-utils/test/rpc_test.ts
index 1bdea3613..b6998f604 100644
--- a/packages/dev-utils/test/rpc_test.ts
+++ b/packages/dev-utils/test/rpc_test.ts
@@ -8,8 +8,8 @@ import { web3Factory } from '../src';
 const expect = chai.expect;
 
 describe('RPC tests', () => {
-    const web3Provider = web3Factory.getRpcProvider();
-    const web3Wrapper = new Web3Wrapper(web3Provider);
+    const provider = web3Factory.getRpcProvider({ shouldUseInProcessGanache: true });
+    const web3Wrapper = new Web3Wrapper(provider);
     describe('#mineBlockAsync', () => {
         it('increases block number when called', async () => {
             const blockNumberBefore = await web3Wrapper.getBlockNumberAsync();
diff --git a/packages/json-schemas/CHANGELOG.json b/packages/json-schemas/CHANGELOG.json
index d6360f5d4..5e5d1ca54 100644
--- a/packages/json-schemas/CHANGELOG.json
+++ b/packages/json-schemas/CHANGELOG.json
@@ -1,5 +1,14 @@
 [
     {
+        "timestamp": 1523462196,
+        "version": "0.7.20",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1522673609,
         "version": "0.7.19",
         "changes": [
diff --git a/packages/json-schemas/CHANGELOG.md b/packages/json-schemas/CHANGELOG.md
index 66943db57..10adc6c46 100644
--- a/packages/json-schemas/CHANGELOG.md
+++ b/packages/json-schemas/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.7.20 - _April 11, 2018_
+
+    * Dependencies updated
+
 ## v0.7.19 - _April 2, 2018_
 
     * Dependencies updated
diff --git a/packages/json-schemas/package.json b/packages/json-schemas/package.json
index b7eb99aef..3ddc831fa 100644
--- a/packages/json-schemas/package.json
+++ b/packages/json-schemas/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/json-schemas",
-    "version": "0.7.19",
+    "version": "0.7.20",
     "description": "0x-related json schemas",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
@@ -11,7 +11,7 @@
         "test:coverage": "nyc npm run test --all && yarn coverage:report:lcov",
         "coverage:report:lcov": "nyc report --reporter=text-lcov > coverage/lcov.info",
         "test:circleci": "yarn test:coverage",
-        "run_mocha": "mocha lib/test/**/*_test.js",
+        "run_mocha": "mocha lib/test/**/*_test.js --exit",
         "clean": "shx rm -rf lib test_temp scripts",
         "build": "tsc && copyfiles -u 3 './lib/src/monorepo_scripts/**/*' ./scripts",
         "manual:postpublish": "yarn build; node ./scripts/postpublish.js",
@@ -42,14 +42,14 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/json-schemas/README.md",
     "dependencies": {
-        "@0xproject/typescript-typings": "^0.0.3",
+        "@0xproject/typescript-typings": "^0.1.0",
         "jsonschema": "^1.2.0",
         "lodash.values": "^4.3.0"
     },
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.16",
-        "@0xproject/tslint-config": "^0.4.14",
-        "@0xproject/utils": "^0.5.0",
+        "@0xproject/monorepo-scripts": "^0.1.17",
+        "@0xproject/tslint-config": "^0.4.15",
+        "@0xproject/utils": "^0.5.1",
         "@types/lodash.foreach": "^4.5.3",
         "@types/lodash.values": "^4.3.3",
         "@types/mocha": "^2.2.42",
diff --git a/packages/metacoin/package.json b/packages/metacoin/package.json
index 867f23192..f181f5233 100644
--- a/packages/metacoin/package.json
+++ b/packages/metacoin/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/metacoin",
-    "version": "0.0.2",
+    "version": "0.0.3",
     "private": true,
     "description": "Example solidity project using 0x dev tools",
     "scripts": {
@@ -12,7 +12,7 @@
         "build": "tsc",
         "test": "run-s build run_mocha",
         "test:coverage": "SOLIDITY_COVERAGE=true run-s build run_mocha coverage:report:text coverage:report:lcov",
-        "run_mocha": "mocha 'lib/test/**/*.js'",
+        "run_mocha": "mocha lib/test/**/*.js --bail --exit",
         "generate_contract_wrappers": "node ../abi-gen/lib/index.js --abis 'artifacts/Metacoin.json' --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/contract_wrappers --backend ethers && prettier --write 'src/contract_wrappers/**.ts'",
         "coverage:report:text": "istanbul report text",
         "coverage:report:html": "istanbul report html && open coverage/index.html",
@@ -23,21 +23,21 @@
     "author": "",
     "license": "Apache-2.0",
     "dependencies": {
-        "@0xproject/abi-gen": "^0.2.9",
-        "@0xproject/base-contract": "^0.1.0",
-        "@0xproject/deployer": "^0.3.5",
-        "@0xproject/sol-cov": "^0.0.6",
-        "@0xproject/subproviders": "^0.8.4",
-        "@0xproject/tslint-config": "^0.4.14",
-        "@0xproject/types": "^0.5.0",
-        "@0xproject/utils": "^0.5.0",
-        "@0xproject/web3-wrapper": "^0.5.0",
+        "@0xproject/abi-gen": "^0.2.10",
+        "@0xproject/base-contract": "^0.2.0",
+        "@0xproject/deployer": "^0.4.0",
+        "@0xproject/sol-cov": "^0.0.7",
+        "@0xproject/subproviders": "^0.8.5",
+        "@0xproject/tslint-config": "^0.4.15",
+        "@0xproject/types": "^0.6.0",
+        "@0xproject/utils": "^0.5.1",
+        "@0xproject/web3-wrapper": "^0.6.0",
         "ethers-contracts": "^2.2.1",
         "lodash": "^4.17.4",
         "web3-provider-engine": "^13.0.1"
     },
     "devDependencies": {
-        "@0xproject/dev-utils": "^0.3.4",
+        "@0xproject/dev-utils": "^0.3.5",
         "chai": "^4.0.1",
         "chai-as-promised": "^7.1.0",
         "chai-bignumber": "^2.0.1",
diff --git a/packages/migrations/README.md b/packages/migrations/README.md
new file mode 100644
index 000000000..15129ae85
--- /dev/null
+++ b/packages/migrations/README.md
@@ -0,0 +1,69 @@
+## Migrations
+
+Migrate the 0x system of smart contracts on the network of your choice using these migrations.
+
+## Contributing
+
+We welcome improvements and fixes from the wider community! To report bugs within this package, please create an issue in this repository.
+
+Please read our [contribution guidelines](../../CONTRIBUTING.md) before getting started.
+
+### Install dependencies
+
+If you don't have yarn workspaces enabled (Yarn < v1.0) - enable them:
+
+```bash
+yarn config set workspaces-experimental true
+```
+
+Then install dependencies
+
+```bash
+yarn install
+```
+
+### Build
+
+If this is your **first** time building this package, you must first build **all** packages within the monorepo. This is because packages that depend on other packages located inside this monorepo are symlinked when run from **within** the monorepo. This allows you to make changes across multiple packages without first publishing dependent packages to NPM. To build all packages, run the following from the monorepo root directory:
+
+```bash
+yarn lerna:rebuild
+```
+
+Or continuously rebuild on change:
+
+```bash
+yarn dev
+```
+
+You can also build this specific package by running the following from within its directory:
+
+```bash
+yarn build
+```
+
+or continuously rebuild on change:
+
+```bash
+yarn build:watch
+```
+
+### Clean
+
+```bash
+yarn clean
+```
+
+### Lint
+
+```bash
+yarn lint
+```
+
+### Migrate
+
+In order to migrate the 0x smart contracts to TestRPC/Ganache running at `http://localhost:8545`, run:
+
+```bash
+yarn migrate
+```
diff --git a/packages/migrations/package.json b/packages/migrations/package.json
new file mode 100644
index 000000000..7ac55124d
--- /dev/null
+++ b/packages/migrations/package.json
@@ -0,0 +1,36 @@
+{
+    "private": true,
+    "name": "@0xproject/migrations",
+    "version": "0.0.1",
+    "description": "0x smart contract migrations",
+    "main": "lib/index.js",
+    "types": "lib/index.d.ts",
+    "scripts": {
+        "build:watch": "tsc -w",
+        "build": "tsc",
+        "clean": "shx rm -rf lib",
+        "lint": "tslint --project . 'src/**/*.ts'",
+        "migrate": "run-s build compile script:migrate",
+        "script:migrate": "node ./lib/migrate.js",
+        "copy_artifacts": "copyfiles 'src/artifacts/**/*' ./lib",
+        "compile": "node ../deployer/lib/src/cli.js compile --contracts ${npm_package_config_contracts} --contracts-dir ../contracts/src/contracts --artifacts-dir src/artifacts"
+    },
+    "config": {
+        "contracts": "Exchange,DummyToken,ZRXToken,Token,WETH9,TokenTransferProxy,MultiSigWallet,MultiSigWalletWithTimeLock,MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress,MaliciousToken,TokenRegistry,Arbitrage,EtherDelta,AccountLevels"
+    },
+    "license": "Apache-2.0",
+    "devDependencies": {
+        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/dev-utils": "^0.3.4",
+        "npm-run-all": "^4.1.2",
+        "shx": "^0.2.2",
+        "tslint": "5.8.0",
+        "typescript": "2.7.1"
+    },
+    "dependencies": {
+        "@0xproject/deployer": "^0.4.0",
+        "@0xproject/utils": "^0.5.0",
+        "@0xproject/web3-wrapper": "^0.5.0",
+        "lodash": "^4.17.4"
+    }
+}
diff --git a/packages/migrations/src/globals.d.ts b/packages/migrations/src/globals.d.ts
new file mode 100644
index 000000000..94e63a32d
--- /dev/null
+++ b/packages/migrations/src/globals.d.ts
@@ -0,0 +1,6 @@
+declare module '*.json' {
+    const json: any;
+    /* tslint:disable */
+    export default json;
+    /* tslint:enable */
+}
diff --git a/packages/migrations/src/index.ts b/packages/migrations/src/index.ts
new file mode 100644
index 000000000..c342247a3
--- /dev/null
+++ b/packages/migrations/src/index.ts
@@ -0,0 +1 @@
+export { runMigrationsAsync } from './migration';
diff --git a/packages/migrations/src/migrate.ts b/packages/migrations/src/migrate.ts
new file mode 100644
index 000000000..76dcbd847
--- /dev/null
+++ b/packages/migrations/src/migrate.ts
@@ -0,0 +1,25 @@
+#!/usr/bin/env node
+import { Deployer } from '@0xproject/deployer';
+import { devConstants } from '@0xproject/dev-utils';
+import { logUtils } from '@0xproject/utils';
+import * as path from 'path';
+
+import { runMigrationsAsync } from './migration';
+
+(async () => {
+    const deployerOpts = {
+        jsonrpcUrl: 'http://localhost:8545',
+        artifactsDir: path.resolve('src', 'artifacts'),
+        networkId: 50,
+        defaults: {
+            gas: devConstants.GAS_ESTIMATE,
+        },
+    };
+
+    const deployer = new Deployer(deployerOpts);
+
+    await runMigrationsAsync(deployer);
+})().catch(err => {
+    logUtils.log(err);
+    process.exit(1);
+});
diff --git a/packages/contracts/migrations/migrate.ts b/packages/migrations/src/migration.ts
index cff8af0ab..4827328fc 100644
--- a/packages/contracts/migrations/migrate.ts
+++ b/packages/migrations/src/migration.ts
@@ -1,12 +1,10 @@
 import { Deployer } from '@0xproject/deployer';
-import { BigNumber } from '@0xproject/utils';
+import { BigNumber, NULL_BYTES } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 
-import { constants } from '../util/constants';
-import { ContractName } from '../util/types';
-
-import { tokenInfo } from './config/token_info';
+import { ContractName } from './types';
+import { tokenInfo } from './utils/token_info';
 
 /**
  * Custom migrations should be defined in this function. This will be called with the CLI 'migrate' command.
@@ -20,7 +18,7 @@ export const runMigrationsAsync = async (deployer: Deployer) => {
 
     const tokenTransferProxy = await deployer.deployAndSaveAsync(ContractName.TokenTransferProxy);
     const zrxToken = await deployer.deployAndSaveAsync(ContractName.ZRXToken);
-    const etherToken = await deployer.deployAndSaveAsync(ContractName.EtherToken);
+    const etherToken = await deployer.deployAndSaveAsync(ContractName.WETH9);
     const tokenReg = await deployer.deployAndSaveAsync(ContractName.TokenRegistry);
 
     const exchangeArgs = [zrxToken.address, tokenTransferProxy.address];
@@ -51,8 +49,8 @@ export const runMigrationsAsync = async (deployer: Deployer) => {
         '0x Protocol Token',
         'ZRX',
         18,
-        constants.NULL_BYTES,
-        constants.NULL_BYTES,
+        NULL_BYTES,
+        NULL_BYTES,
         {
             from: owner,
             gas: addTokenGasEstimate,
@@ -63,8 +61,8 @@ export const runMigrationsAsync = async (deployer: Deployer) => {
         'Ether Token',
         'WETH',
         18,
-        constants.NULL_BYTES,
-        constants.NULL_BYTES,
+        NULL_BYTES,
+        NULL_BYTES,
         {
             from: owner,
             gas: addTokenGasEstimate,
diff --git a/packages/migrations/src/types.ts b/packages/migrations/src/types.ts
new file mode 100644
index 000000000..1887bfd96
--- /dev/null
+++ b/packages/migrations/src/types.ts
@@ -0,0 +1,38 @@
+export interface MultiSigConfig {
+    owners: string[];
+    confirmationsRequired: number;
+    secondsRequired: number;
+}
+
+export interface MultiSigConfigByNetwork {
+    [networkName: string]: MultiSigConfig;
+}
+
+export interface Token {
+    address?: string;
+    name: string;
+    symbol: string;
+    decimals: number;
+    ipfsHash: string;
+    swarmHash: string;
+}
+
+export interface TokenInfoByNetwork {
+    development: Token[];
+    live: Token[];
+}
+
+export enum ContractName {
+    TokenTransferProxy = 'TokenTransferProxy',
+    TokenRegistry = 'TokenRegistry',
+    MultiSigWalletWithTimeLock = 'MultiSigWalletWithTimeLock',
+    Exchange = 'Exchange',
+    ZRXToken = 'ZRXToken',
+    DummyToken = 'DummyToken',
+    WETH9 = 'WETH9',
+    MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress = 'MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress',
+    MaliciousToken = 'MaliciousToken',
+    AccountLevels = 'AccountLevels',
+    EtherDelta = 'EtherDelta',
+    Arbitrage = 'Arbitrage',
+}
diff --git a/packages/contracts/migrations/config/token_info.ts b/packages/migrations/src/utils/token_info.ts
index 5fd3db144..968665c7d 100644
--- a/packages/contracts/migrations/config/token_info.ts
+++ b/packages/migrations/src/utils/token_info.ts
@@ -1,4 +1,5 @@
-import { constants } from '../../util/constants';
+import { NULL_BYTES } from '@0xproject/utils';
+
 import { Token } from '../types';
 
 export const tokenInfo: Token[] = [
@@ -6,35 +7,35 @@ export const tokenInfo: Token[] = [
         name: 'Augur Reputation Token',
         symbol: 'REP',
         decimals: 18,
-        ipfsHash: constants.NULL_BYTES,
-        swarmHash: constants.NULL_BYTES,
+        ipfsHash: NULL_BYTES,
+        swarmHash: NULL_BYTES,
     },
     {
         name: 'Digix DAO Token',
         symbol: 'DGD',
         decimals: 18,
-        ipfsHash: constants.NULL_BYTES,
-        swarmHash: constants.NULL_BYTES,
+        ipfsHash: NULL_BYTES,
+        swarmHash: NULL_BYTES,
     },
     {
         name: 'Golem Network Token',
         symbol: 'GNT',
         decimals: 18,
-        ipfsHash: constants.NULL_BYTES,
-        swarmHash: constants.NULL_BYTES,
+        ipfsHash: NULL_BYTES,
+        swarmHash: NULL_BYTES,
     },
     {
         name: 'MakerDAO',
         symbol: 'MKR',
         decimals: 18,
-        ipfsHash: constants.NULL_BYTES,
-        swarmHash: constants.NULL_BYTES,
+        ipfsHash: NULL_BYTES,
+        swarmHash: NULL_BYTES,
     },
     {
         name: 'Melon Token',
         symbol: 'MLN',
         decimals: 18,
-        ipfsHash: constants.NULL_BYTES,
-        swarmHash: constants.NULL_BYTES,
+        ipfsHash: NULL_BYTES,
+        swarmHash: NULL_BYTES,
     },
 ];
diff --git a/packages/migrations/tsconfig.json b/packages/migrations/tsconfig.json
new file mode 100644
index 000000000..f5f4b37c2
--- /dev/null
+++ b/packages/migrations/tsconfig.json
@@ -0,0 +1,7 @@
+{
+    "extends": "../../tsconfig",
+    "compilerOptions": {
+        "outDir": "lib"
+    },
+    "include": ["src/**/*"]
+}
diff --git a/packages/migrations/tslint.json b/packages/migrations/tslint.json
new file mode 100644
index 000000000..ffaefe83a
--- /dev/null
+++ b/packages/migrations/tslint.json
@@ -0,0 +1,3 @@
+{
+    "extends": ["@0xproject/tslint-config"]
+}
diff --git a/packages/monorepo-scripts/CHANGELOG.json b/packages/monorepo-scripts/CHANGELOG.json
index 05e1ce2a2..431ae879b 100644
--- a/packages/monorepo-scripts/CHANGELOG.json
+++ b/packages/monorepo-scripts/CHANGELOG.json
@@ -1,5 +1,14 @@
 [
     {
+        "timestamp": 1523462196,
+        "version": "0.1.17",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1522658513,
         "version": "0.1.16",
         "changes": [
diff --git a/packages/monorepo-scripts/CHANGELOG.md b/packages/monorepo-scripts/CHANGELOG.md
index 8734cb835..1942f03f3 100644
--- a/packages/monorepo-scripts/CHANGELOG.md
+++ b/packages/monorepo-scripts/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.1.17 - _April 11, 2018_
+
+    * Dependencies updated
+
 ## v0.1.16 - _April 2, 2018_
 
     * Dependencies updated
diff --git a/packages/monorepo-scripts/package.json b/packages/monorepo-scripts/package.json
index b113b4b39..ac21cabc4 100644
--- a/packages/monorepo-scripts/package.json
+++ b/packages/monorepo-scripts/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/monorepo-scripts",
-    "version": "0.1.16",
+    "version": "0.1.17",
     "description": "Helper scripts for the monorepo",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
@@ -29,6 +29,7 @@
         "@0xproject/tslint-config": "0.4.13",
         "@types/glob": "^5.0.33",
         "@types/node": "^8.0.53",
+        "@types/opn": "^5.1.0",
         "@types/rimraf": "^2.0.2",
         "depcheck": "^0.6.9",
         "lerna-get-packages": "^1.0.0",
@@ -45,7 +46,9 @@
         "glob": "^7.1.2",
         "lodash": "^4.17.4",
         "moment": "2.21.0",
+        "opn": "^5.3.0",
         "promisify-child-process": "^1.0.5",
+        "prompt": "^1.0.0",
         "publish-release": "0xproject/publish-release",
         "rimraf": "^2.6.2",
         "semver-diff": "^2.1.0",
diff --git a/packages/monorepo-scripts/src/constants.ts b/packages/monorepo-scripts/src/constants.ts
index 74387a159..081a49332 100644
--- a/packages/monorepo-scripts/src/constants.ts
+++ b/packages/monorepo-scripts/src/constants.ts
@@ -2,4 +2,5 @@ import * as path from 'path';
 
 export const constants = {
     monorepoRootPath: path.join(__dirname, '../../..'),
+    stagingWebsite: 'http://staging-0xproject.s3-website-us-east-1.amazonaws.com',
 };
diff --git a/packages/monorepo-scripts/src/globals.d.ts b/packages/monorepo-scripts/src/globals.d.ts
index c5898d0f5..1693a6dbb 100644
--- a/packages/monorepo-scripts/src/globals.d.ts
+++ b/packages/monorepo-scripts/src/globals.d.ts
@@ -3,6 +3,11 @@ declare module 'publish-release';
 declare module 'es6-promisify';
 declare module 'semver-diff';
 
+declare module 'prompt' {
+    const start: () => void;
+    const get: (promptMessages: string[], callback: (err: Error, result: string) => void) => void;
+}
+
 // semver-sort declarations
 declare module 'semver-sort' {
     const desc: (versions: string[]) => string[];
@@ -15,6 +20,7 @@ declare interface LernaPackage {
         version: string;
         name: string;
         main?: string;
+        scripts?: { [command: string]: string };
         config?: {
             additionalTsTypings?: string[];
         };
diff --git a/packages/monorepo-scripts/src/publish.ts b/packages/monorepo-scripts/src/publish.ts
index adc1de64a..21c8b72c9 100644
--- a/packages/monorepo-scripts/src/publish.ts
+++ b/packages/monorepo-scripts/src/publish.ts
@@ -1,18 +1,23 @@
 #!/usr/bin/env node
 
+import * as promisify from 'es6-promisify';
 import * as fs from 'fs';
 import lernaGetPackages = require('lerna-get-packages');
 import * as _ from 'lodash';
 import * as moment from 'moment';
+import opn = require('opn');
 import * as path from 'path';
 import { exec as execAsync, spawn } from 'promisify-child-process';
+import * as prompt from 'prompt';
 import semverDiff = require('semver-diff');
 import semverSort = require('semver-sort');
 
 import { constants } from './constants';
-import { Changelog, Changes, SemVerIndex, UpdatedPackage } from './types';
+import { Changelog, Changes, PackageToVersionChange, SemVerIndex, UpdatedPackage } from './types';
 import { utils } from './utils';
 
+const DOC_GEN_COMMAND = 'docs:json';
+const NPM_NAMESPACE = '@0xproject/';
 const IS_DRY_RUN = process.env.IS_DRY_RUN === 'true';
 const TODAYS_TIMESTAMP = moment().unix();
 const LERNA_EXECUTABLE = './node_modules/lerna/bin/lerna.js';
@@ -21,8 +26,95 @@ const semverNameToIndex: { [semver: string]: number } = {
     minor: SemVerIndex.Minor,
     major: SemVerIndex.Major,
 };
+const packageNameToWebsitePath: { [name: string]: string } = {
+    '0x.js': '0xjs',
+    'web3-wrapper': 'web3_wrapper',
+    contracts: 'contracts',
+    connect: 'connect',
+    'json-schemas': 'json-schemas',
+    deployer: 'deployer',
+    'sol-cov': 'sol-cov',
+    subproviders: 'subproviders',
+};
 
 (async () => {
+    // Fetch public, updated Lerna packages
+    const updatedPublicLernaPackages = await getUpdatedPublicLernaPackagesAsync();
+
+    await confirmDocPagesRenderAsync(updatedPublicLernaPackages);
+
+    // Update CHANGELOGs
+    const updatedPublicLernaPackageNames = _.map(updatedPublicLernaPackages, pkg => pkg.package.name);
+    utils.log(`Will update CHANGELOGs and publish: \n${updatedPublicLernaPackageNames.join('\n')}\n`);
+    const packageToVersionChange = await updateChangeLogsAsync(updatedPublicLernaPackages);
+
+    // Push changelog changes to Github
+    if (!IS_DRY_RUN) {
+        await pushChangelogsToGithubAsync();
+    }
+
+    // Call LernaPublish
+    utils.log('Version updates to apply:');
+    _.each(packageToVersionChange, (versionChange: string, packageName: string) => {
+        utils.log(`${packageName} -> ${versionChange}`);
+    });
+    utils.log(`Calling 'lerna publish'...`);
+    await lernaPublishAsync(packageToVersionChange);
+})().catch(err => {
+    utils.log(err);
+    process.exit(1);
+});
+
+async function confirmDocPagesRenderAsync(packages: LernaPackage[]) {
+    // push docs to staging
+    utils.log("Upload all docJson's to S3 staging...");
+    await execAsync(`yarn lerna:stage_docs`, { cwd: constants.monorepoRootPath });
+
+    // deploy website to staging
+    utils.log('Deploy website to staging...');
+    const pathToWebsite = `${constants.monorepoRootPath}/packages/website`;
+    await execAsync(`yarn deploy_staging`, { cwd: pathToWebsite });
+
+    const packagesWithDocs = _.filter(packages, pkg => {
+        const scriptsIfExists = pkg.package.scripts;
+        if (_.isUndefined(scriptsIfExists)) {
+            throw new Error('Found a public package without any scripts in package.json');
+        }
+        return !_.isUndefined(scriptsIfExists[DOC_GEN_COMMAND]);
+    });
+    _.each(packagesWithDocs, pkg => {
+        const name = pkg.package.name;
+        const nameWithoutPrefix = _.startsWith(name, NPM_NAMESPACE) ? name.split('@0xproject/')[1] : name;
+        const docSegmentIfExists = packageNameToWebsitePath[nameWithoutPrefix];
+        if (_.isUndefined(docSegmentIfExists)) {
+            throw new Error(
+                `Found package '${name}' with doc commands but no corresponding docSegment in monorepo_scripts
+package.ts. Please add an entry for it and try again.`,
+            );
+        }
+        const link = `${constants.stagingWebsite}/docs/${docSegmentIfExists}`;
+        // tslint:disable-next-line:no-floating-promises
+        opn(link);
+    });
+
+    prompt.start();
+    const message = 'Do all the doc pages render properly? (yn)';
+    const result = await promisify(prompt.get)([message]);
+    const didConfirm = result[message] === 'y';
+    if (!didConfirm) {
+        utils.log('Publish process aborted.');
+        process.exit(0);
+    }
+}
+
+async function pushChangelogsToGithubAsync() {
+    await execAsync(`git add . --all`, { cwd: constants.monorepoRootPath });
+    await execAsync(`git commit -m "Updated CHANGELOGS"`, { cwd: constants.monorepoRootPath });
+    await execAsync(`git push`, { cwd: constants.monorepoRootPath });
+    utils.log(`Pushed CHANGELOG updates to Github`);
+}
+
+async function getUpdatedPublicLernaPackagesAsync(): Promise<LernaPackage[]> {
     const updatedPublicPackages = await getPublicLernaUpdatedPackagesAsync();
     const updatedPackageNames = _.map(updatedPublicPackages, pkg => pkg.name);
 
@@ -30,10 +122,11 @@ const semverNameToIndex: { [semver: string]: number } = {
     const updatedPublicLernaPackages = _.filter(allLernaPackages, pkg => {
         return _.includes(updatedPackageNames, pkg.package.name);
     });
-    const updatedPublicLernaPackageNames = _.map(updatedPublicLernaPackages, pkg => pkg.package.name);
-    utils.log(`Will update CHANGELOGs and publish: \n${updatedPublicLernaPackageNames.join('\n')}\n`);
+    return updatedPublicLernaPackages;
+}
 
-    const packageToVersionChange: { [name: string]: string } = {};
+async function updateChangeLogsAsync(updatedPublicLernaPackages: LernaPackage[]): Promise<PackageToVersionChange> {
+    const packageToVersionChange: PackageToVersionChange = {};
     for (const lernaPackage of updatedPublicLernaPackages) {
         const packageName = lernaPackage.package.name;
         const changelogJSONPath = path.join(lernaPackage.location, 'CHANGELOG.json');
@@ -88,23 +181,8 @@ const semverNameToIndex: { [semver: string]: number } = {
         utils.log(`${packageName}: Updated CHANGELOG.md`);
     }
 
-    if (!IS_DRY_RUN) {
-        await execAsync(`git add . --all`, { cwd: constants.monorepoRootPath });
-        await execAsync(`git commit -m "Updated CHANGELOGS"`, { cwd: constants.monorepoRootPath });
-        await execAsync(`git push`, { cwd: constants.monorepoRootPath });
-        utils.log(`Pushed CHANGELOG updates to Github`);
-    }
-
-    utils.log('Version updates to apply:');
-    _.each(packageToVersionChange, (versionChange: string, packageName: string) => {
-        utils.log(`${packageName} -> ${versionChange}`);
-    });
-    utils.log(`Calling 'lerna publish'...`);
-    await lernaPublishAsync(packageToVersionChange);
-})().catch(err => {
-    utils.log(err);
-    process.exit(1);
-});
+    return packageToVersionChange;
+}
 
 async function lernaPublishAsync(packageToVersionChange: { [name: string]: string }) {
     // HACK: Lerna publish does not provide a way to specify multiple package versions via
diff --git a/packages/monorepo-scripts/src/types.ts b/packages/monorepo-scripts/src/types.ts
index 9e6edd186..28d00d710 100644
--- a/packages/monorepo-scripts/src/types.ts
+++ b/packages/monorepo-scripts/src/types.ts
@@ -21,3 +21,7 @@ export enum SemVerIndex {
     Minor,
     Major,
 }
+
+export interface PackageToVersionChange {
+    [name: string]: string;
+}
diff --git a/packages/react-docs-example/package.json b/packages/react-docs-example/package.json
index cad1d7556..95c23c226 100644
--- a/packages/react-docs-example/package.json
+++ b/packages/react-docs-example/package.json
@@ -1,7 +1,7 @@
 {
     "private": true,
     "name": "@0xproject/react-docs-example",
-    "version": "0.0.6",
+    "version": "0.0.7",
     "description": "An example app using react-docs",
     "scripts": {
         "lint": "tslint --project . 'ts/**/*.ts' 'ts/**/*.tsx'",
@@ -23,7 +23,7 @@
         "url": "https://github.com/0xProject/0x-monorepo.git"
     },
     "devDependencies": {
-        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/tslint-config": "^0.4.15",
         "@types/lodash": "4.14.104",
         "@types/material-ui": "0.18.0",
         "@types/node": "^8.0.53",
@@ -46,7 +46,7 @@
         "webpack-dev-server": "^2.11.1"
     },
     "dependencies": {
-        "@0xproject/react-docs": "^0.0.6",
+        "@0xproject/react-docs": "^0.0.7",
         "basscss": "^8.0.3",
         "lodash": "^4.17.4",
         "material-ui": "^0.17.1",
diff --git a/packages/react-docs/CHANGELOG.json b/packages/react-docs/CHANGELOG.json
index 2c06e5c1c..951ed84e0 100644
--- a/packages/react-docs/CHANGELOG.json
+++ b/packages/react-docs/CHANGELOG.json
@@ -1,6 +1,6 @@
 [
     {
-        "version": "0.0.7",
+        "version": "0.0.8",
         "changes": [
             {
                 "note": "Added support for rendering default param values",
@@ -13,6 +13,15 @@
         ]
     },
     {
+        "timestamp": 1523462196,
+        "version": "0.0.7",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1522673609,
         "version": "0.0.6",
         "changes": [
diff --git a/packages/react-docs/CHANGELOG.md b/packages/react-docs/CHANGELOG.md
index 3bb01feff..bb531f8b3 100644
--- a/packages/react-docs/CHANGELOG.md
+++ b/packages/react-docs/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.0.7 - _April 11, 2018_
+
+    * Dependencies updated
+
 ## v0.0.6 - _April 2, 2018_
 
     * Dependencies updated
diff --git a/packages/react-docs/package.json b/packages/react-docs/package.json
index 12f438f53..f2af1cb64 100644
--- a/packages/react-docs/package.json
+++ b/packages/react-docs/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/react-docs",
-    "version": "0.0.6",
+    "version": "0.0.7",
     "description": "React documentation component for rendering TypeDoc & Doxity generated JSON",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
@@ -22,17 +22,17 @@
         "url": "https://github.com/0xProject/0x-monorepo.git"
     },
     "devDependencies": {
-        "@0xproject/dev-utils": "^0.3.4",
-        "@0xproject/monorepo-scripts": "^0.1.16",
-        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/dev-utils": "^0.3.5",
+        "@0xproject/monorepo-scripts": "^0.1.17",
+        "@0xproject/tslint-config": "^0.4.15",
         "copyfiles": "^1.2.0",
         "shx": "^0.2.2",
         "tslint": "^5.9.1",
         "typescript": "2.7.1"
     },
     "dependencies": {
-        "@0xproject/react-shared": "^0.1.1",
-        "@0xproject/utils": "^0.5.0",
+        "@0xproject/react-shared": "^0.1.2",
+        "@0xproject/utils": "^0.5.1",
         "@types/lodash": "4.14.104",
         "@types/material-ui": "0.18.0",
         "@types/node": "^8.0.53",
diff --git a/packages/react-shared/CHANGELOG.json b/packages/react-shared/CHANGELOG.json
index 858750253..737f46fd9 100644
--- a/packages/react-shared/CHANGELOG.json
+++ b/packages/react-shared/CHANGELOG.json
@@ -1,5 +1,14 @@
 [
     {
+        "timestamp": 1523462196,
+        "version": "0.1.2",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1522673609,
         "version": "0.1.1",
         "changes": [
diff --git a/packages/react-shared/CHANGELOG.md b/packages/react-shared/CHANGELOG.md
index 6a2e7ec83..46119ad48 100644
--- a/packages/react-shared/CHANGELOG.md
+++ b/packages/react-shared/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.1.2 - _April 11, 2018_
+
+    * Dependencies updated
+
 ## v0.1.1 - _April 2, 2018_
 
     * Dependencies updated
diff --git a/packages/react-shared/package.json b/packages/react-shared/package.json
index 690da74fe..389052583 100644
--- a/packages/react-shared/package.json
+++ b/packages/react-shared/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/react-shared",
-    "version": "0.1.1",
+    "version": "0.1.2",
     "description": "0x shared react components",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
@@ -22,9 +22,9 @@
         "url": "https://github.com/0xProject/0x-monorepo.git"
     },
     "devDependencies": {
-        "@0xproject/dev-utils": "^0.3.4",
-        "@0xproject/monorepo-scripts": "^0.1.16",
-        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/dev-utils": "^0.3.5",
+        "@0xproject/monorepo-scripts": "^0.1.17",
+        "@0xproject/tslint-config": "^0.4.15",
         "copyfiles": "^1.2.0",
         "shx": "^0.2.2",
         "tslint": "^5.9.1",
diff --git a/packages/sol-cov/CHANGELOG.json b/packages/sol-cov/CHANGELOG.json
index e24a264db..ca4c67f7e 100644
--- a/packages/sol-cov/CHANGELOG.json
+++ b/packages/sol-cov/CHANGELOG.json
@@ -1,5 +1,14 @@
 [
     {
+        "timestamp": 1523462196,
+        "version": "0.0.7",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1522673609,
         "version": "0.0.6",
         "changes": [
diff --git a/packages/sol-cov/CHANGELOG.md b/packages/sol-cov/CHANGELOG.md
index e2e5d92ec..c55d751a8 100644
--- a/packages/sol-cov/CHANGELOG.md
+++ b/packages/sol-cov/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.0.7 - _April 11, 2018_
+
+    * Dependencies updated
+
 ## v0.0.6 - _April 2, 2018_
 
     * Dependencies updated
diff --git a/packages/sol-cov/package.json b/packages/sol-cov/package.json
index 82d0df30c..f92850db5 100644
--- a/packages/sol-cov/package.json
+++ b/packages/sol-cov/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/sol-cov",
-    "version": "0.0.6",
+    "version": "0.0.7",
     "description": "Generate coverage reports for Solidity code",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
@@ -11,7 +11,7 @@
         "test:coverage": "nyc npm run test --all && yarn coverage:report:lcov",
         "coverage:report:lcov": "nyc report --reporter=text-lcov > coverage/lcov.info",
         "test:circleci": "yarn test:coverage",
-        "run_mocha": "mocha lib/test/**/*_test.js",
+        "run_mocha": "mocha lib/test/**/*_test.js --exit",
         "clean": "shx rm -rf lib scripts",
         "build": "copyfiles 'test/fixtures/**/*' ./lib && tsc && copyfiles -u 3 './lib/src/monorepo_scripts/**/*' ./scripts",
         "manual:postpublish": "yarn build; node ./scripts/postpublish.js",
@@ -42,9 +42,9 @@
     },
     "homepage": "https://github.com/0xProject/0x.js/packages/sol-cov/README.md",
     "dependencies": {
-        "@0xproject/subproviders": "^0.8.4",
-        "@0xproject/types": "^0.5.0",
-        "@0xproject/typescript-typings": "^0.0.3",
+        "@0xproject/subproviders": "^0.8.5",
+        "@0xproject/types": "^0.6.0",
+        "@0xproject/typescript-typings": "^0.1.0",
         "ethereumjs-util": "^5.1.1",
         "glob": "^7.1.2",
         "istanbul": "^0.4.5",
@@ -53,8 +53,8 @@
         "solidity-parser-antlr": "^0.2.8"
     },
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.16",
-        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/monorepo-scripts": "^0.1.17",
+        "@0xproject/tslint-config": "^0.4.15",
         "@types/istanbul": "^0.4.29",
         "@types/mocha": "^2.2.42",
         "@types/node": "^8.0.53",
diff --git a/packages/sol-cov/src/coverage_subprovider.ts b/packages/sol-cov/src/coverage_subprovider.ts
index fc8b55188..6504d5a46 100644
--- a/packages/sol-cov/src/coverage_subprovider.ts
+++ b/packages/sol-cov/src/coverage_subprovider.ts
@@ -56,8 +56,8 @@ export class CoverageSubprovider extends Subprovider {
      * @param next Callback to call if this subprovider decides not to handle the request
      * @param end Callback to call if subprovider handled the request and wants to pass back the request.
      */
-    // tslint:disable-next-line:prefer-function-over-method
-    public handleRequest(payload: JSONRPCRequestPayload, next: NextCallback, end: ErrorCallback) {
+    // tslint:disable-next-line:prefer-function-over-method async-suffix
+    public async handleRequest(payload: JSONRPCRequestPayload, next: NextCallback, end: ErrorCallback) {
         switch (payload.method) {
             case 'eth_sendTransaction':
                 const txData = payload.params[0];
diff --git a/packages/sra-report/CHANGELOG.json b/packages/sra-report/CHANGELOG.json
index 35c849e4e..d8200b0cd 100644
--- a/packages/sra-report/CHANGELOG.json
+++ b/packages/sra-report/CHANGELOG.json
@@ -1,5 +1,14 @@
 [
     {
+        "timestamp": 1523462196,
+        "version": "0.0.8",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1522673609,
         "version": "0.0.7",
         "changes": [
diff --git a/packages/sra-report/CHANGELOG.md b/packages/sra-report/CHANGELOG.md
index eb45322b8..6dc4b3d2f 100644
--- a/packages/sra-report/CHANGELOG.md
+++ b/packages/sra-report/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.0.8 - _April 11, 2018_
+
+    * Dependencies updated
+
 ## v0.0.7 - _April 2, 2018_
 
     * Dependencies updated
diff --git a/packages/sra-report/package.json b/packages/sra-report/package.json
index 3c24ec312..1d0163b82 100644
--- a/packages/sra-report/package.json
+++ b/packages/sra-report/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/sra-report",
-    "version": "0.0.7",
+    "version": "0.0.8",
     "description": "Generate reports for standard relayer API compliance",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
@@ -12,7 +12,7 @@
         "test": "run-s clean build copy_test_environments copy_test_fixtures run_mocha",
         "copy_test_fixtures": "copyfiles -u 2 './test/fixtures/**/*.json' ./lib/test/fixtures",
         "copy_test_environments": "copyfiles -u 2 './test/environments/**/*.json' ./lib/test/environments",
-        "run_mocha": "mocha lib/test/**/*_test.js",
+        "run_mocha": "mocha lib/test/**/*_test.js --exit",
         "manual:postpublish": "yarn build; node ./scripts/postpublish.js"
     },
     "bin": {
@@ -28,20 +28,20 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/sra-report/README.md",
     "dependencies": {
-        "0x.js": "^0.35.0",
-        "@0xproject/assert": "^0.2.5",
-        "@0xproject/connect": "^0.6.8",
-        "@0xproject/json-schemas": "^0.7.19",
-        "@0xproject/typescript-typings": "^0.0.3",
-        "@0xproject/utils": "^0.5.0",
+        "0x.js": "^0.36.0",
+        "@0xproject/assert": "^0.2.6",
+        "@0xproject/connect": "^0.6.9",
+        "@0xproject/json-schemas": "^0.7.20",
+        "@0xproject/typescript-typings": "^0.1.0",
+        "@0xproject/utils": "^0.5.1",
         "chalk": "^2.3.0",
         "lodash": "^4.17.4",
         "newman": "^3.9.3",
         "yargs": "^10.0.3"
     },
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.16",
-        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/monorepo-scripts": "^0.1.17",
+        "@0xproject/tslint-config": "^0.4.15",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^2.2.48",
         "@types/nock": "^9.1.2",
diff --git a/packages/subproviders/CHANGELOG.json b/packages/subproviders/CHANGELOG.json
index f0702cd5d..6ab3e7093 100644
--- a/packages/subproviders/CHANGELOG.json
+++ b/packages/subproviders/CHANGELOG.json
@@ -1,12 +1,18 @@
 [
     {
-        "version": "0.8.5",
+        "version": "0.9.0",
         "changes": [
             {
+                "note":
+                    "Refactor RedundantRPCSubprovider into RedundantSubprovider where it now accepts an array of subproviders rather then an array of RPC endpoints",
+                "pr": 500
+            },
+            {
                 "note": "Add private key subprovider and refactor shared functionality into a base wallet subprovider",
                 "pr": 506
             }
-        ]
+        ],
+        "timestamp": 1523462196
     },
     {
         "timestamp": 1522673609,
diff --git a/packages/subproviders/CHANGELOG.md b/packages/subproviders/CHANGELOG.md
index 79711e7b7..85cd420dc 100644
--- a/packages/subproviders/CHANGELOG.md
+++ b/packages/subproviders/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.8.5 - _April 11, 2018_
+
+    * Add private key subprovider and refactor shared functionality into a base wallet subprovider (#506)
+
 ## v0.8.4 - _April 2, 2018_
 
     * Dependencies updated
diff --git a/packages/subproviders/package.json b/packages/subproviders/package.json
index cadbac0e8..36133e417 100644
--- a/packages/subproviders/package.json
+++ b/packages/subproviders/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/subproviders",
-    "version": "0.8.4",
+    "version": "0.8.5",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
     "license": "Apache-2.0",
@@ -36,10 +36,10 @@
         }
     },
     "dependencies": {
-        "@0xproject/assert": "^0.2.5",
-        "@0xproject/types": "^0.5.0",
-        "@0xproject/typescript-typings": "^0.0.3",
-        "@0xproject/utils": "^0.5.0",
+        "@0xproject/assert": "^0.2.6",
+        "@0xproject/types": "^0.6.0",
+        "@0xproject/typescript-typings": "^0.1.0",
+        "@0xproject/utils": "^0.5.1",
         "@ledgerhq/hw-app-eth": "^4.3.0",
         "@ledgerhq/hw-transport-u2f": "^4.3.0",
         "bn.js": "^4.11.8",
@@ -53,9 +53,9 @@
         "web3-provider-engine": "^13.0.1"
     },
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.16",
-        "@0xproject/tslint-config": "^0.4.14",
-        "@0xproject/utils": "^0.5.0",
+        "@0xproject/monorepo-scripts": "^0.1.17",
+        "@0xproject/tslint-config": "^0.4.15",
+        "@0xproject/utils": "^0.5.1",
         "@types/lodash": "4.14.104",
         "@types/mocha": "^2.2.42",
         "@types/node": "^8.0.53",
diff --git a/packages/subproviders/src/index.ts b/packages/subproviders/src/index.ts
index dd553fde4..b84473e45 100644
--- a/packages/subproviders/src/index.ts
+++ b/packages/subproviders/src/index.ts
@@ -7,7 +7,7 @@ import { LedgerEthereumClient } from './types';
 export { EmptyWalletSubprovider } from './subproviders/empty_wallet_subprovider';
 export { FakeGasEstimateSubprovider } from './subproviders/fake_gas_estimate_subprovider';
 export { InjectedWeb3Subprovider } from './subproviders/injected_web3';
-export { RedundantRPCSubprovider } from './subproviders/redundant_rpc';
+export { RedundantSubprovider } from './subproviders/redundant_subprovider';
 export { LedgerSubprovider } from './subproviders/ledger';
 export { GanacheSubprovider } from './subproviders/ganache';
 export { Subprovider } from './subproviders/subprovider';
diff --git a/packages/subproviders/src/subproviders/empty_wallet_subprovider.ts b/packages/subproviders/src/subproviders/empty_wallet_subprovider.ts
index 595ec654d..8f152dc0a 100644
--- a/packages/subproviders/src/subproviders/empty_wallet_subprovider.ts
+++ b/packages/subproviders/src/subproviders/empty_wallet_subprovider.ts
@@ -17,8 +17,8 @@ export class EmptyWalletSubprovider extends Subprovider {
      * @param next Callback to call if this subprovider decides not to handle the request
      * @param end Callback to call if subprovider handled the request and wants to pass back the request.
      */
-    // tslint:disable-next-line:prefer-function-over-method
-    public handleRequest(payload: JSONRPCRequestPayload, next: Callback, end: ErrorCallback) {
+    // tslint:disable-next-line:prefer-function-over-method async-suffix
+    public async handleRequest(payload: JSONRPCRequestPayload, next: Callback, end: ErrorCallback) {
         switch (payload.method) {
             case 'eth_accounts':
                 end(null, []);
diff --git a/packages/subproviders/src/subproviders/fake_gas_estimate_subprovider.ts b/packages/subproviders/src/subproviders/fake_gas_estimate_subprovider.ts
index 966c37d8a..54fd7bcb9 100644
--- a/packages/subproviders/src/subproviders/fake_gas_estimate_subprovider.ts
+++ b/packages/subproviders/src/subproviders/fake_gas_estimate_subprovider.ts
@@ -31,8 +31,8 @@ export class FakeGasEstimateSubprovider extends Subprovider {
      * @param next Callback to call if this subprovider decides not to handle the request
      * @param end Callback to call if subprovider handled the request and wants to pass back the request.
      */
-    // tslint:disable-next-line:prefer-function-over-method
-    public handleRequest(payload: JSONRPCRequestPayload, next: Callback, end: ErrorCallback) {
+    // tslint:disable-next-line:prefer-function-over-method async-suffix
+    public async handleRequest(payload: JSONRPCRequestPayload, next: Callback, end: ErrorCallback) {
         switch (payload.method) {
             case 'eth_estimateGas':
                 end(null, this._constantGasAmount);
diff --git a/packages/subproviders/src/subproviders/ganache.ts b/packages/subproviders/src/subproviders/ganache.ts
index 8008d1b4b..debd7ecf0 100644
--- a/packages/subproviders/src/subproviders/ganache.ts
+++ b/packages/subproviders/src/subproviders/ganache.ts
@@ -27,8 +27,8 @@ export class GanacheSubprovider extends Subprovider {
      * @param next Callback to call if this subprovider decides not to handle the request
      * @param end Callback to call if subprovider handled the request and wants to pass back the request.
      */
-    // tslint:disable-next-line:prefer-function-over-method
-    public handleRequest(payload: JSONRPCRequestPayload, next: Callback, end: ErrorCallback) {
+    // tslint:disable-next-line:prefer-function-over-method async-suffix
+    public async handleRequest(payload: JSONRPCRequestPayload, next: Callback, end: ErrorCallback) {
         this._ganacheProvider.sendAsync(payload, (err: Error | null, result: any) => {
             end(err, result && result.result);
         });
diff --git a/packages/subproviders/src/subproviders/injected_web3.ts b/packages/subproviders/src/subproviders/injected_web3.ts
index 1d7b2ddfe..3ca0c4bd0 100644
--- a/packages/subproviders/src/subproviders/injected_web3.ts
+++ b/packages/subproviders/src/subproviders/injected_web3.ts
@@ -30,8 +30,8 @@ export class InjectedWeb3Subprovider extends Subprovider {
      * @param next Callback to call if this subprovider decides not to handle the request
      * @param end Callback to call if subprovider handled the request and wants to pass back the request.
      */
-    // tslint:disable-next-line:prefer-function-over-method
-    public handleRequest(payload: JSONRPCRequestPayload, next: Callback, end: ErrorCallback) {
+    // tslint:disable-next-line:prefer-function-over-method async-suffix
+    public async handleRequest(payload: JSONRPCRequestPayload, next: Callback, end: ErrorCallback) {
         switch (payload.method) {
             case 'web3_clientVersion':
                 this._injectedWeb3.version.getNode(end);
diff --git a/packages/subproviders/src/subproviders/redundant_rpc.ts b/packages/subproviders/src/subproviders/redundant_subprovider.ts
index f8ff0915d..37c8bba5a 100644
--- a/packages/subproviders/src/subproviders/redundant_rpc.ts
+++ b/packages/subproviders/src/subproviders/redundant_subprovider.ts
@@ -1,7 +1,6 @@
 import { JSONRPCRequestPayload } from '@0xproject/types';
 import { promisify } from '@0xproject/utils';
 import * as _ from 'lodash';
-import RpcSubprovider = require('web3-provider-engine/subproviders/rpc');
 
 import { Callback } from '../types';
 
@@ -12,17 +11,17 @@ import { Subprovider } from './subprovider';
  * It attempts to handle each JSON RPC request by sequentially attempting to receive a valid response from one of a
  * set of JSON RPC endpoints.
  */
-export class RedundantRPCSubprovider extends Subprovider {
-    private _rpcs: RpcSubprovider[];
+export class RedundantSubprovider extends Subprovider {
+    private _subproviders: Subprovider[];
     private static async _firstSuccessAsync(
-        rpcs: RpcSubprovider[],
+        subproviders: Subprovider[],
         payload: JSONRPCRequestPayload,
         next: Callback,
     ): Promise<any> {
         let lastErr: Error | undefined;
-        for (const rpc of rpcs) {
+        for (const subprovider of subproviders) {
             try {
-                const data = await promisify(rpc.handleRequest.bind(rpc))(payload, next);
+                const data = await promisify(subprovider.handleRequest.bind(subprovider))(payload, next);
                 return data;
             } catch (err) {
                 lastErr = err;
@@ -34,16 +33,12 @@ export class RedundantRPCSubprovider extends Subprovider {
         }
     }
     /**
-     * Instantiates a new RedundantRPCSubprovider
+     * Instantiates a new RedundantSubprovider
      * @param endpoints JSON RPC endpoints to attempt. Attempts are made in the order of the endpoints.
      */
-    constructor(endpoints: string[]) {
+    constructor(subproviders: Subprovider[]) {
         super();
-        this._rpcs = _.map(endpoints, endpoint => {
-            return new RpcSubprovider({
-                rpcUrl: endpoint,
-            });
-        });
+        this._subproviders = subproviders;
     }
     /**
      * This method conforms to the web3-provider-engine interface.
@@ -59,9 +54,9 @@ export class RedundantRPCSubprovider extends Subprovider {
         next: Callback,
         end: (err: Error | null, data?: any) => void,
     ): Promise<void> {
-        const rpcsCopy = this._rpcs.slice();
+        const subprovidersCopy = this._subproviders.slice();
         try {
-            const data = await RedundantRPCSubprovider._firstSuccessAsync(rpcsCopy, payload, next);
+            const data = await RedundantSubprovider._firstSuccessAsync(subprovidersCopy, payload, next);
             end(null, data);
         } catch (err) {
             end(err);
diff --git a/packages/subproviders/src/subproviders/subprovider.ts b/packages/subproviders/src/subproviders/subprovider.ts
index c51462f07..2118f52c8 100644
--- a/packages/subproviders/src/subproviders/subprovider.ts
+++ b/packages/subproviders/src/subproviders/subprovider.ts
@@ -2,13 +2,14 @@ import { JSONRPCRequestPayload, JSONRPCResponsePayload } from '@0xproject/types'
 import { promisify } from '@0xproject/utils';
 import * as Web3 from 'web3';
 
-import { JSONRPCRequestPayloadWithMethod } from '../types';
+import { Callback, ErrorCallback, JSONRPCRequestPayloadWithMethod } from '../types';
 /**
  * A altered version of the base class Subprovider found in [web3-provider-engine](https://github.com/MetaMask/provider-engine).
  * This one has an async/await `emitPayloadAsync` and also defined types.
  */
-export class Subprovider {
-    private _engine: any;
+export abstract class Subprovider {
+    // tslint:disable-next-line:underscore-private-and-protected
+    private engine: any;
     // Ported from: https://github.com/MetaMask/provider-engine/blob/master/util/random-id.js
     private static _getRandomId() {
         const extraDigits = 3;
@@ -31,6 +32,13 @@ export class Subprovider {
         };
         return finalPayload;
     }
+    // tslint:disable-next-line:async-suffix
+    public abstract async handleRequest(
+        payload: JSONRPCRequestPayload,
+        next: Callback,
+        end: ErrorCallback,
+    ): Promise<void>;
+
     /**
      * Emits a JSON RPC payload that will then be handled by the ProviderEngine instance
      * this subprovider is a part of. The payload will cascade down the subprovider middleware
@@ -40,7 +48,7 @@ export class Subprovider {
      */
     public async emitPayloadAsync(payload: Partial<JSONRPCRequestPayloadWithMethod>): Promise<JSONRPCResponsePayload> {
         const finalPayload = Subprovider._createFinalPayload(payload);
-        const response = await promisify<JSONRPCResponsePayload>(this._engine.sendAsync, this._engine)(finalPayload);
+        const response = await promisify<JSONRPCResponsePayload>(this.engine.sendAsync, this.engine)(finalPayload);
         return response;
     }
     /**
@@ -49,6 +57,6 @@ export class Subprovider {
      * directly.
      */
     public setEngine(engine: any): void {
-        this._engine = engine;
+        this.engine = engine;
     }
 }
diff --git a/packages/subproviders/test/integration/ledger_subprovider_test.ts b/packages/subproviders/test/integration/ledger_subprovider_test.ts
index 503618089..9e81dfac5 100644
--- a/packages/subproviders/test/integration/ledger_subprovider_test.ts
+++ b/packages/subproviders/test/integration/ledger_subprovider_test.ts
@@ -1,7 +1,7 @@
 import { JSONRPCResponsePayload } from '@0xproject/types';
 import { promisify } from '@0xproject/utils';
 import Eth from '@ledgerhq/hw-app-eth';
-// HACK: This depdency is optional and tslint skips optional depdencies
+// HACK: This dependency is optional and tslint skips optional dependencies
 // tslint:disable-next-line:no-implicit-dependencies
 import TransportNodeHid from '@ledgerhq/hw-transport-node-hid';
 import * as chai from 'chai';
diff --git a/packages/subproviders/test/unit/ledger_subprovider_test.ts b/packages/subproviders/test/unit/ledger_subprovider_test.ts
index c18506681..88d38f59b 100644
--- a/packages/subproviders/test/unit/ledger_subprovider_test.ts
+++ b/packages/subproviders/test/unit/ledger_subprovider_test.ts
@@ -4,7 +4,6 @@ import * as ethUtils from 'ethereumjs-util';
 import * as _ from 'lodash';
 import Web3 = require('web3');
 import Web3ProviderEngine = require('web3-provider-engine');
-import RpcSubprovider = require('web3-provider-engine/subproviders/rpc');
 
 import { LedgerSubprovider } from '../../src';
 import {
@@ -15,6 +14,7 @@ import {
 } from '../../src/types';
 import { chaiSetup } from '../chai_setup';
 import { fixtureData } from '../utils/fixture_data';
+import { ganacheSubprovider } from '../utils/ganache_subprovider';
 import { reportCallbackErrors } from '../utils/report_callback_errors';
 
 chaiSetup.configure();
@@ -105,10 +105,7 @@ describe('LedgerSubprovider', () => {
         before(() => {
             provider = new Web3ProviderEngine();
             provider.addProvider(ledgerSubprovider);
-            const httpProvider = new RpcSubprovider({
-                rpcUrl: 'http://localhost:8545',
-            });
-            provider.addProvider(httpProvider);
+            provider.addProvider(ganacheSubprovider);
             provider.start();
         });
         describe('success cases', () => {
diff --git a/packages/subproviders/test/unit/redundant_rpc_subprovider_test.ts b/packages/subproviders/test/unit/redundant_rpc_subprovider_test.ts
index a347ab765..e25cb7eb7 100644
--- a/packages/subproviders/test/unit/redundant_rpc_subprovider_test.ts
+++ b/packages/subproviders/test/unit/redundant_rpc_subprovider_test.ts
@@ -3,21 +3,24 @@ import * as chai from 'chai';
 import * as _ from 'lodash';
 import Web3 = require('web3');
 import Web3ProviderEngine = require('web3-provider-engine');
+import RpcSubprovider = require('web3-provider-engine/subproviders/rpc');
 
-import { RedundantRPCSubprovider } from '../../src';
+import { RedundantSubprovider } from '../../src';
+import { Subprovider } from '../../src/subproviders/subprovider';
 import { DoneCallback } from '../../src/types';
 import { chaiSetup } from '../chai_setup';
+import { ganacheSubprovider } from '../utils/ganache_subprovider';
 import { reportCallbackErrors } from '../utils/report_callback_errors';
 
 const expect = chai.expect;
 chaiSetup.configure();
 
-describe('RedundantRpcSubprovider', () => {
+describe('RedundantSubprovider', () => {
     let provider: Web3ProviderEngine;
     it('succeeds when supplied a healthy endpoint', (done: DoneCallback) => {
         provider = new Web3ProviderEngine();
-        const endpoints = ['http://localhost:8545'];
-        const redundantSubprovider = new RedundantRPCSubprovider(endpoints);
+        const subproviders = [ganacheSubprovider];
+        const redundantSubprovider = new RedundantSubprovider(subproviders);
         provider.addProvider(redundantSubprovider);
         provider.start();
 
@@ -36,8 +39,11 @@ describe('RedundantRpcSubprovider', () => {
     });
     it('succeeds when supplied at least one healthy endpoint', (done: DoneCallback) => {
         provider = new Web3ProviderEngine();
-        const endpoints = ['http://does-not-exist:3000', 'http://localhost:8545'];
-        const redundantSubprovider = new RedundantRPCSubprovider(endpoints);
+        const nonExistentSubprovider = new RpcSubprovider({
+            rpcUrl: 'http://does-not-exist:3000',
+        });
+        const subproviders = [nonExistentSubprovider as Subprovider, ganacheSubprovider];
+        const redundantSubprovider = new RedundantSubprovider(subproviders);
         provider.addProvider(redundantSubprovider);
         provider.start();
 
diff --git a/packages/subproviders/test/utils/configs.ts b/packages/subproviders/test/utils/configs.ts
new file mode 100644
index 000000000..341037e4f
--- /dev/null
+++ b/packages/subproviders/test/utils/configs.ts
@@ -0,0 +1,5 @@
+export const configs = {
+    port: 8545,
+    networkId: 50,
+    mnemonic: 'concert load couple harbor equip island argue ramp clarify fence smart topic',
+};
diff --git a/packages/subproviders/test/utils/ganache_subprovider.ts b/packages/subproviders/test/utils/ganache_subprovider.ts
new file mode 100644
index 000000000..ac4a9325c
--- /dev/null
+++ b/packages/subproviders/test/utils/ganache_subprovider.ts
@@ -0,0 +1,18 @@
+import * as fs from 'fs';
+
+import { GanacheSubprovider } from '../../src/subproviders/ganache';
+import { configs } from '../utils/configs';
+
+const logger = {
+    log: (arg: any) => {
+        fs.appendFileSync('ganache.log', `${arg}\n`);
+    },
+};
+
+export const ganacheSubprovider = new GanacheSubprovider({
+    logger,
+    verbose: false,
+    port: configs.port,
+    networkId: configs.networkId,
+    mnemonic: configs.mnemonic,
+});
diff --git a/packages/testnet-faucets/package.json b/packages/testnet-faucets/package.json
index b0db99174..3d51e3e2b 100644
--- a/packages/testnet-faucets/package.json
+++ b/packages/testnet-faucets/package.json
@@ -1,7 +1,7 @@
 {
     "private": true,
     "name": "@0xproject/testnet-faucets",
-    "version": "1.0.22",
+    "version": "1.0.23",
     "description": "A faucet micro-service that dispenses test ERC20 tokens or Ether",
     "main": "server.js",
     "scripts": {
@@ -15,10 +15,10 @@
     "author": "Fabio Berger",
     "license": "Apache-2.0",
     "dependencies": {
-        "0x.js": "^0.35.0",
-        "@0xproject/subproviders": "^0.8.4",
-        "@0xproject/typescript-typings": "^0.0.3",
-        "@0xproject/utils": "^0.5.0",
+        "0x.js": "^0.36.0",
+        "@0xproject/subproviders": "^0.8.5",
+        "@0xproject/typescript-typings": "^0.1.0",
+        "@0xproject/utils": "^0.5.1",
         "body-parser": "^1.17.1",
         "ethereumjs-tx": "^1.3.3",
         "ethereumjs-util": "^5.1.1",
@@ -29,7 +29,7 @@
         "web3-provider-engine": "^13.0.1"
     },
     "devDependencies": {
-        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/tslint-config": "^0.4.15",
         "@types/body-parser": "^1.16.1",
         "@types/express": "^4.0.35",
         "@types/lodash": "4.14.104",
diff --git a/packages/tslint-config/CHANGELOG.json b/packages/tslint-config/CHANGELOG.json
index 363fead6f..99e80a05b 100644
--- a/packages/tslint-config/CHANGELOG.json
+++ b/packages/tslint-config/CHANGELOG.json
@@ -1,5 +1,14 @@
 [
     {
+        "timestamp": 1523462196,
+        "version": "0.4.15",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1522673609,
         "version": "0.4.14",
         "changes": [
diff --git a/packages/tslint-config/CHANGELOG.md b/packages/tslint-config/CHANGELOG.md
index 5b17ad9dc..d19f20d0f 100644
--- a/packages/tslint-config/CHANGELOG.md
+++ b/packages/tslint-config/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.4.15 - _April 11, 2018_
+
+    * Dependencies updated
+
 ## v0.4.14 - _April 2, 2018_
 
     * Dependencies updated
diff --git a/packages/tslint-config/package.json b/packages/tslint-config/package.json
index c0eb9087b..988380d85 100644
--- a/packages/tslint-config/package.json
+++ b/packages/tslint-config/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/tslint-config",
-    "version": "0.4.14",
+    "version": "0.4.15",
     "description": "Lint rules related to 0xProject for TSLint",
     "main": "tslint.json",
     "scripts": {
@@ -31,7 +31,7 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/tslint-config/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.16",
+        "@0xproject/monorepo-scripts": "^0.1.17",
         "@types/lodash": "4.14.104",
         "copyfiles": "^1.2.0",
         "shx": "^0.2.2",
diff --git a/packages/types/CHANGELOG.json b/packages/types/CHANGELOG.json
index 2e4c5f091..e0ff1e14d 100644
--- a/packages/types/CHANGELOG.json
+++ b/packages/types/CHANGELOG.json
@@ -6,7 +6,8 @@
                 "note": "Add Provider type",
                 "pr": 501
             }
-        ]
+        ],
+        "timestamp": 1523462196
     },
     {
         "version": "0.5.0",
diff --git a/packages/types/CHANGELOG.md b/packages/types/CHANGELOG.md
index 96a4df8b8..24ce3c30a 100644
--- a/packages/types/CHANGELOG.md
+++ b/packages/types/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.6.0 - _April 11, 2018_
+
+    * Add Provider type (#501)
+
 ## v0.5.0 - _April 2, 2018_
 
     * Make `DataItem.components` optional (#485)
diff --git a/packages/types/package.json b/packages/types/package.json
index edae406ae..c55c8376a 100644
--- a/packages/types/package.json
+++ b/packages/types/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/types",
-    "version": "0.5.0",
+    "version": "0.6.0",
     "description": "0x types",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
@@ -21,8 +21,8 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/types/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.16",
-        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/monorepo-scripts": "^0.1.17",
+        "@0xproject/tslint-config": "^0.4.15",
         "@types/node": "^8.0.53",
         "copyfiles": "^1.2.0",
         "shx": "^0.2.2",
diff --git a/packages/typescript-typings/CHANGELOG.json b/packages/typescript-typings/CHANGELOG.json
index 294d9ee9f..39af8ace0 100644
--- a/packages/typescript-typings/CHANGELOG.json
+++ b/packages/typescript-typings/CHANGELOG.json
@@ -6,7 +6,8 @@
                 "note": "Add types for more packages",
                 "pr": 501
             }
-        ]
+        ],
+        "timestamp": 1523462196
     },
     {
         "timestamp": 1522673609,
diff --git a/packages/typescript-typings/CHANGELOG.md b/packages/typescript-typings/CHANGELOG.md
index ec7d90a86..d5a356918 100644
--- a/packages/typescript-typings/CHANGELOG.md
+++ b/packages/typescript-typings/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.1.0 - _April 11, 2018_
+
+    * Add types for more packages (#501)
+
 ## v0.0.3 - _April 2, 2018_
 
     * Dependencies updated
diff --git a/packages/typescript-typings/package.json b/packages/typescript-typings/package.json
index 2258a1f01..0d9aea63d 100644
--- a/packages/typescript-typings/package.json
+++ b/packages/typescript-typings/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/typescript-typings",
-    "version": "0.0.3",
+    "version": "0.1.0",
     "description": "0x project typescript type definitions",
     "scripts": {
         "build": "tsc && copyfiles -u 1 './lib/**/*' ./scripts",
@@ -21,11 +21,11 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/typescript-typings#readme",
     "dependencies": {
-        "@0xproject/types": "^0.5.0",
+        "@0xproject/types": "^0.6.0",
         "bignumber.js": "~4.1.0"
     },
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.16",
+        "@0xproject/monorepo-scripts": "^0.1.17",
         "copyfiles": "^1.2.0",
         "shx": "^0.2.2"
     },
diff --git a/packages/utils/CHANGELOG.json b/packages/utils/CHANGELOG.json
index 0c71963c3..dada0eab3 100644
--- a/packages/utils/CHANGELOG.json
+++ b/packages/utils/CHANGELOG.json
@@ -1,5 +1,23 @@
 [
     {
+        "version": "0.5.2",
+        "changes": [
+            {
+                "note": "Export NULL_BYTES constant",
+                "pr": 500
+            }
+        ]
+    },
+    {
+        "timestamp": 1523462196,
+        "version": "0.5.1",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "version": "0.5.0",
         "changes": [
             {
diff --git a/packages/utils/CHANGELOG.md b/packages/utils/CHANGELOG.md
index 018f19a15..2123d1097 100644
--- a/packages/utils/CHANGELOG.md
+++ b/packages/utils/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.5.1 - _April 11, 2018_
+
+    * Dependencies updated
+
 ## v0.5.0 - _April 2, 2018_
 
     * Make `AbiDecoder.addABI` public (#485)
diff --git a/packages/utils/package.json b/packages/utils/package.json
index 491fed040..f3cbdf14c 100644
--- a/packages/utils/package.json
+++ b/packages/utils/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/utils",
-    "version": "0.5.0",
+    "version": "0.5.1",
     "description": "0x TS utils",
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
@@ -21,8 +21,8 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/utils/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.16",
-        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/monorepo-scripts": "^0.1.17",
+        "@0xproject/tslint-config": "^0.4.15",
         "@types/lodash": "4.14.104",
         "copyfiles": "^1.2.0",
         "npm-run-all": "^4.1.2",
@@ -31,8 +31,8 @@
         "typescript": "2.7.1"
     },
     "dependencies": {
-        "@0xproject/types": "^0.5.0",
-        "@0xproject/typescript-typings": "^0.0.3",
+        "@0xproject/types": "^0.6.0",
+        "@0xproject/typescript-typings": "^0.1.0",
         "@types/node": "^8.0.53",
         "bignumber.js": "~4.1.0",
         "ethers-contracts": "^2.2.1",
diff --git a/packages/utils/src/constants.ts b/packages/utils/src/constants.ts
new file mode 100644
index 000000000..2894d4747
--- /dev/null
+++ b/packages/utils/src/constants.ts
@@ -0,0 +1 @@
+export const NULL_BYTES = '0x';
diff --git a/packages/utils/src/index.ts b/packages/utils/src/index.ts
index 0da4b265d..75c096ee6 100644
--- a/packages/utils/src/index.ts
+++ b/packages/utils/src/index.ts
@@ -6,3 +6,5 @@ export { BigNumber } from './configured_bignumber';
 export { AbiDecoder } from './abi_decoder';
 export { logUtils } from './log_utils';
 export { abiUtils } from './abi_utils';
+
+export { NULL_BYTES } from './constants';
diff --git a/packages/web3-wrapper/CHANGELOG.json b/packages/web3-wrapper/CHANGELOG.json
index 14e45dacb..473684087 100644
--- a/packages/web3-wrapper/CHANGELOG.json
+++ b/packages/web3-wrapper/CHANGELOG.json
@@ -10,7 +10,8 @@
                 "note": "Add static methods `toUnitAmount` and `toBaseUnitAmount`",
                 "pr": 501
             }
-        ]
+        ],
+        "timestamp": 1523462196
     },
     {
         "version": "0.5.0",
diff --git a/packages/web3-wrapper/CHANGELOG.md b/packages/web3-wrapper/CHANGELOG.md
index 3d498022a..8b0d4139b 100644
--- a/packages/web3-wrapper/CHANGELOG.md
+++ b/packages/web3-wrapper/CHANGELOG.md
@@ -5,6 +5,11 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v0.6.0 - _April 11, 2018_
+
+    * Make `isAddress` and `toWei` static (#501)
+    * Add static methods `toUnitAmount` and `toBaseUnitAmount` (#501)
+
 ## v0.5.0 - _April 2, 2018_
 
     * Add `web3Wrapper.awaitTransactionMinedAsync` (#485)
diff --git a/packages/web3-wrapper/package.json b/packages/web3-wrapper/package.json
index 910d4725e..5e6fc3618 100644
--- a/packages/web3-wrapper/package.json
+++ b/packages/web3-wrapper/package.json
@@ -1,12 +1,12 @@
 {
     "name": "@0xproject/web3-wrapper",
-    "version": "0.5.0",
+    "version": "0.6.0",
     "description": "Wraps around web3 and gives a nicer interface",
     "main": "lib/src/index.js",
     "types": "lib/src/index.d.ts",
     "scripts": {
         "build:watch": "tsc -w",
-        "build": "tsc && copyfiles -u 2 './lib/monorepo_scripts/**/*' ./scripts",
+        "build": "tsc && copyfiles -u 3 './lib/src/monorepo_scripts/**/*' ./scripts",
         "clean": "shx rm -rf lib scripts",
         "lint": "tslint --project . 'src/**/*.ts'",
         "test": "run-s clean build run_mocha",
@@ -40,27 +40,27 @@
     },
     "homepage": "https://github.com/0xProject/0x-monorepo/packages/web3-wrapper/README.md",
     "devDependencies": {
-        "@0xproject/monorepo-scripts": "^0.1.16",
-        "@0xproject/tslint-config": "^0.4.14",
+        "@0xproject/monorepo-scripts": "^0.1.17",
+        "@0xproject/tslint-config": "^0.4.15",
         "@types/lodash": "4.14.104",
-        "copyfiles": "^1.2.0",
-        "npm-run-all": "^4.1.2",
-        "shx": "^0.2.2",
         "chai": "^4.0.1",
-        "mocha": "^4.0.1",
-        "nyc": "^11.0.1",
-        "ganache-core": "0xProject/ganache-core",
         "chai-as-promised": "^7.1.0",
         "chai-bignumber": "^2.0.1",
+        "copyfiles": "^1.2.0",
         "dirty-chai": "^2.0.1",
+        "ganache-core": "0xProject/ganache-core",
+        "mocha": "^4.0.1",
+        "npm-run-all": "^4.1.2",
+        "nyc": "^11.0.1",
+        "shx": "^0.2.2",
         "tslint": "5.8.0",
         "typedoc": "0xProject/typedoc",
         "typescript": "2.7.1"
     },
     "dependencies": {
-        "@0xproject/types": "^0.5.0",
-        "@0xproject/typescript-typings": "^0.0.3",
-        "@0xproject/utils": "^0.5.0",
+        "@0xproject/types": "^0.6.0",
+        "@0xproject/typescript-typings": "^0.1.0",
+        "@0xproject/utils": "^0.5.1",
         "ethers-contracts": "^2.2.1",
         "lodash": "^4.17.4",
         "web3": "^0.20.0"
diff --git a/packages/website/package.json b/packages/website/package.json
index 7d0c68b47..a8011dc8d 100644
--- a/packages/website/package.json
+++ b/packages/website/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/website",
-    "version": "0.0.24",
+    "version": "0.0.25",
     "private": true,
     "description": "Website and 0x portal dapp",
     "scripts": {
@@ -8,23 +8,19 @@
         "clean": "shx rm -f public/bundle*",
         "lint": "tslint --project . 'ts/**/*.ts' 'ts/**/*.tsx'",
         "dev": "webpack-dev-server --content-base public --https",
-        "update_contracts": "for i in ${npm_package_config_artifacts}; do copyfiles -u 4 ../contracts/build/contracts/$i.json ../website/contracts; done;",
         "deploy_staging": "npm run build; aws s3 sync ./public/. s3://staging-0xproject --profile 0xproject --region us-east-1 --grants read=uri=http://acs.amazonaws.com/groups/global/AllUsers",
         "deploy_live": "npm run build; aws s3 sync ./public/. s3://0xproject.com --profile 0xproject --region us-east-1 --grants read=uri=http://acs.amazonaws.com/groups/global/AllUsers"
     },
-    "config": {
-        "artifacts": "Mintable"
-    },
     "author": "Fabio Berger",
     "license": "Apache-2.0",
     "dependencies": {
-        "0x.js": "^0.35.0",
-        "@0xproject/react-docs": "^0.0.6",
-        "@0xproject/react-shared": "^0.1.1",
-        "@0xproject/subproviders": "^0.8.4",
-        "@0xproject/typescript-typings": "^0.0.3",
-        "@0xproject/utils": "^0.5.0",
-        "@0xproject/web3-wrapper": "^0.5.0",
+        "0x.js": "^0.36.0",
+        "@0xproject/react-docs": "^0.0.7",
+        "@0xproject/react-shared": "^0.1.2",
+        "@0xproject/subproviders": "^0.8.5",
+        "@0xproject/typescript-typings": "^0.1.0",
+        "@0xproject/utils": "^0.5.1",
+        "@0xproject/web3-wrapper": "^0.6.0",
         "accounting": "^0.4.1",
         "basscss": "^8.0.3",
         "blockies": "^0.0.2",
diff --git a/packages/website/ts/blockchain.ts b/packages/website/ts/blockchain.ts
index fd34ab82d..7d79542a3 100644
--- a/packages/website/ts/blockchain.ts
+++ b/packages/website/ts/blockchain.ts
@@ -21,7 +21,8 @@ import {
     ledgerEthereumBrowserClientFactoryAsync,
     LedgerSubprovider,
     LedgerWalletSubprovider,
-    RedundantRPCSubprovider,
+    RedundantSubprovider,
+    Subprovider,
 } from '@0xproject/subproviders';
 import { Provider } from '@0xproject/types';
 import { BigNumber, intervalUtils, logUtils, promisify } from '@0xproject/utils';
@@ -54,6 +55,7 @@ import { utils } from 'ts/utils/utils';
 import Web3 = require('web3');
 import ProviderEngine = require('web3-provider-engine');
 import FilterSubprovider = require('web3-provider-engine/subproviders/filters');
+import RpcSubprovider = require('web3-provider-engine/subproviders/rpc');
 
 import * as MintableArtifacts from '../contracts/Mintable.json';
 
@@ -98,7 +100,12 @@ export class Blockchain {
             provider = new ProviderEngine();
             provider.addProvider(new InjectedWeb3Subprovider(injectedWeb3.currentProvider));
             provider.addProvider(new FilterSubprovider());
-            provider.addProvider(new RedundantRPCSubprovider(publicNodeUrlsIfExistsForNetworkId));
+            const rpcSubproviders = _.map(publicNodeUrlsIfExistsForNetworkId, publicNodeUrl => {
+                return new RpcSubprovider({
+                    rpcUrl: publicNodeUrl,
+                });
+            });
+            provider.addProvider(new RedundantSubprovider(rpcSubproviders as Subprovider[]));
             provider.start();
         } else if (doesInjectedWeb3Exist) {
             // Since no public node for this network, all requests go to injectedWeb3 instance
@@ -110,7 +117,12 @@ export class Blockchain {
             provider = new ProviderEngine();
             provider.addProvider(new FilterSubprovider());
             const networkId = configs.IS_MAINNET_ENABLED ? constants.NETWORK_ID_MAINNET : constants.NETWORK_ID_KOVAN;
-            provider.addProvider(new RedundantRPCSubprovider(configs.PUBLIC_NODE_URLS_BY_NETWORK_ID[networkId]));
+            const rpcSubproviders = _.map(configs.PUBLIC_NODE_URLS_BY_NETWORK_ID[networkId], publicNodeUrl => {
+                return new RpcSubprovider({
+                    rpcUrl: publicNodeUrl,
+                });
+            });
+            provider.addProvider(new RedundantSubprovider(rpcSubproviders as Subprovider[]));
             provider.start();
         }
 
@@ -201,7 +213,12 @@ export class Blockchain {
         this._ledgerSubprovider = new LedgerSubprovider(ledgerWalletConfigs);
         provider.addProvider(this._ledgerSubprovider);
         provider.addProvider(new FilterSubprovider());
-        provider.addProvider(new RedundantRPCSubprovider(configs.PUBLIC_NODE_URLS_BY_NETWORK_ID[networkId]));
+        const rpcSubproviders = _.map(configs.PUBLIC_NODE_URLS_BY_NETWORK_ID[networkId], publicNodeUrl => {
+            return new RpcSubprovider({
+                rpcUrl: publicNodeUrl,
+            });
+        });
+        provider.addProvider(new RedundantSubprovider(rpcSubproviders as Subprovider[]));
         provider.start();
         this.networkId = networkId;
         this._dispatcher.updateNetworkId(this.networkId);
diff --git a/yarn.lock b/yarn.lock
index 3a2cb66ca..265b194e3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6,41 +6,6 @@
   version "0.3.9"
   resolved "https://registry.yarnpkg.com/8fold-marked/-/8fold-marked-0.3.9.tgz#bb89c645612f8ccfaffac1ca6e3c11f168c9cf59"
 
-"@0xproject/dev-utils@^0.2.1":
-  version "0.2.1"
-  resolved "https://registry.yarnpkg.com/@0xproject/dev-utils/-/dev-utils-0.2.1.tgz#a54465376fd7c8cf58781b02b1790d74fb51e91b"
-  dependencies:
-    "@0xproject/subproviders" "^0.7.0"
-    "@0xproject/types" "^0.3.1"
-    "@0xproject/utils" "^0.4.1"
-    ethereumjs-util "^5.1.2"
-    lodash "^4.17.4"
-    request-promise-native "^1.0.5"
-    web3 "^0.20.0"
-    web3-provider-engine "^13.0.1"
-
-"@0xproject/subproviders@^0.7.0":
-  version "0.7.0"
-  resolved "https://registry.yarnpkg.com/@0xproject/subproviders/-/subproviders-0.7.0.tgz#ce3379a85649773e5c08f5fc3239e8ed07f13361"
-  dependencies:
-    "@0xproject/assert" "^0.2.0"
-    "@0xproject/types" "^0.3.1"
-    "@0xproject/utils" "^0.4.1"
-    "@ledgerhq/hw-app-eth" "^4.3.0"
-    "@ledgerhq/hw-transport-u2f" "^4.3.0"
-    bn.js "^4.11.8"
-    es6-promisify "^5.0.0"
-    ethereumjs-tx "^1.3.3"
-    ethereumjs-util "^5.1.1"
-    hdkey "^0.7.1"
-    lodash "^4.17.4"
-    semaphore-async-await "^1.5.1"
-    web3 "^0.20.0"
-    web3-provider-engine "^13.0.1"
-    web3-typescript-typings "^0.10.0"
-  optionalDependencies:
-    "@ledgerhq/hw-transport-node-hid" "^4.3.0"
-
 "@0xproject/tslint-config@0.4.13":
   version "0.4.13"
   resolved "https://registry.yarnpkg.com/@0xproject/tslint-config/-/tslint-config-0.4.13.tgz#98c71c5ae5e80315a23eda0134cc9f6f4438cac2"
@@ -50,40 +15,6 @@
     tslint-eslint-rules "^4.1.1"
     tslint-react "^3.2.0"
 
-"@0xproject/types@^0.3.1":
-  version "0.3.1"
-  resolved "https://registry.yarnpkg.com/@0xproject/types/-/types-0.3.1.tgz#9a75be6d3a2d41b7ecbd9105c3fdc09f3e3ec297"
-  dependencies:
-    bignumber.js "~4.1.0"
-    web3 "^0.20.0"
-    web3-typescript-typings "^0.10.0"
-
-"@0xproject/types@^0.4.2":
-  version "0.4.2"
-  resolved "https://registry.yarnpkg.com/@0xproject/types/-/types-0.4.2.tgz#83d6ebef60f41e6209acb2656b1d68ff79367ca5"
-  dependencies:
-    bignumber.js "~4.1.0"
-
-"@0xproject/typescript-typings@^0.0.2":
-  version "0.0.2"
-  resolved "https://registry.yarnpkg.com/@0xproject/typescript-typings/-/typescript-typings-0.0.2.tgz#b549ea3c81ce2d81b99f05583bdf7c411a3ca90c"
-  dependencies:
-    "@0xproject/types" "^0.4.2"
-    bignumber.js "~4.1.0"
-
-"@0xproject/utils@^0.4.1":
-  version "0.4.4"
-  resolved "https://registry.yarnpkg.com/@0xproject/utils/-/utils-0.4.4.tgz#bce4f7a5a46570a69911f4a4ade5d49016330087"
-  dependencies:
-    "@0xproject/types" "^0.4.2"
-    "@0xproject/typescript-typings" "^0.0.2"
-    "@types/node" "^8.0.53"
-    bignumber.js "~4.1.0"
-    ethers-contracts "^2.2.1"
-    js-sha3 "^0.7.0"
-    lodash "^4.17.4"
-    web3 "^0.20.0"
-
 "@ledgerhq/hw-app-eth@^4.3.0":
   version "4.7.3"
   resolved "https://registry.yarnpkg.com/@ledgerhq/hw-app-eth/-/hw-app-eth-4.7.3.tgz#d352e19658ae296532e522c53c8ec2a1a77b64e5"
@@ -289,6 +220,12 @@
   version "8.10.0"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-8.10.0.tgz#f5d649cc49af8ed6507d15dc6e9b43fe8b927540"
 
+"@types/opn@^5.1.0":
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/@types/opn/-/opn-5.1.0.tgz#bff7bc371677f4bdbb37884400e03fd81f743927"
+  dependencies:
+    "@types/node" "*"
+
 "@types/query-string@^5.0.1":
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/@types/query-string/-/query-string-5.1.0.tgz#7f40cdea49ddafa0ea4f3db35fb6c24d3bfd4dcc"
@@ -803,10 +740,14 @@ async@2.6.0, async@^2.0.1, async@^2.1.2, async@^2.4.0, async@^2.5.0:
   dependencies:
     lodash "^4.14.0"
 
-async@^0.9.0:
+async@^0.9.0, async@~0.9.0:
   version "0.9.2"
   resolved "https://registry.yarnpkg.com/async/-/async-0.9.2.tgz#aea74d5e61c1f899613bf64bda66d4c78f2fd17d"
 
+async@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/async/-/async-1.0.0.tgz#f8fc04ca3a13784ade9e1641af98578cfbd647a9"
+
 async@~1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/async/-/async-1.2.1.tgz#a4816a17cd5ff516dfa2c7698a453369b9790de0"
@@ -2220,6 +2161,10 @@ colormin@^1.0.5:
     css-color-names "0.0.4"
     has "^1.0.1"
 
+colors@1.0.x:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/colors/-/colors-1.0.3.tgz#0433f44d809680fdeb60ed260f1b0c262e82a40b"
+
 colors@1.1.2, colors@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/colors/-/colors-1.1.2.tgz#168a4701756b6a7f51a12ce0c97bfa28c084ed63"
@@ -2810,6 +2755,10 @@ currently-unhandled@^0.4.1:
   dependencies:
     array-find-index "^1.0.1"
 
+cycle@1.0.x:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/cycle/-/cycle-1.0.3.tgz#21e80b2be8580f98b468f379430662b046c34ad2"
+
 cyclist@~0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/cyclist/-/cyclist-0.2.2.tgz#1b33792e11e914a2fd6d6ed6447464444e5fa640"
@@ -2975,6 +2924,10 @@ deep-equal@^1.0.0, deep-equal@^1.0.1, deep-equal@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/deep-equal/-/deep-equal-1.0.1.tgz#f5d260292b660e084eff4cdbc9f08ad3247448b5"
 
+deep-equal@~0.2.1:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/deep-equal/-/deep-equal-0.2.2.tgz#84b745896f34c684e98f2ce0e42abaf43bba017d"
+
 deep-extend@~0.4.0:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.4.2.tgz#48b699c27e334bf89f10892be432f6e4c7d34a7f"
@@ -3631,7 +3584,7 @@ ethereumjs-util@^4.0.1, ethereumjs-util@^4.3.0, ethereumjs-util@^4.4.0:
     rlp "^2.0.0"
     secp256k1 "^3.0.1"
 
-ethereumjs-util@^5.0.0, ethereumjs-util@^5.0.1, ethereumjs-util@^5.1.1, ethereumjs-util@^5.1.2, ethereumjs-util@^5.1.3, ethereumjs-util@^5.1.5:
+ethereumjs-util@^5.0.0, ethereumjs-util@^5.0.1, ethereumjs-util@^5.1.1, ethereumjs-util@^5.1.3, ethereumjs-util@^5.1.5:
   version "5.1.5"
   resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-5.1.5.tgz#2f02575852627d45622426f25ee4a0b5f377f27a"
   dependencies:
@@ -3916,6 +3869,10 @@ extsprintf@^1.2.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.4.0.tgz#e2689f8f356fad62cca65a3a91c5df5f9551692f"
 
+eyes@0.1.x:
+  version "0.1.8"
+  resolved "https://registry.yarnpkg.com/eyes/-/eyes-0.1.8.tgz#62cf120234c683785d902348a800ef3e0cc20bc0"
+
 fake-merkle-patricia-tree@^1.0.1, fake-merkle-patricia-tree@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/fake-merkle-patricia-tree/-/fake-merkle-patricia-tree-1.0.1.tgz#4b8c3acfb520afadf9860b1f14cd8ce3402cddd3"
@@ -5103,6 +5060,10 @@ hyphenate-style-name@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/hyphenate-style-name/-/hyphenate-style-name-1.0.2.tgz#31160a36930adaf1fc04c6074f7eb41465d4ec4b"
 
+i@0.3.x:
+  version "0.3.6"
+  resolved "https://registry.yarnpkg.com/i/-/i-0.3.6.tgz#d96c92732076f072711b6b10fd7d4f65ad8ee23d"
+
 iconv-lite@0.4.19, iconv-lite@^0.4.17, iconv-lite@~0.4.13:
   version "0.4.19"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.19.tgz#f7468f60135f5e5dad3399c0a81be9a1603a082b"
@@ -5666,7 +5627,7 @@ isomorphic-fetch@^2.1.1, isomorphic-fetch@^2.2.0, isomorphic-fetch@^2.2.1:
     node-fetch "^1.0.1"
     whatwg-fetch ">=0.10.0"
 
-isstream@~0.1.2:
+isstream@0.1.x, isstream@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
 
@@ -6840,7 +6801,7 @@ mkdirp-promise@^5.0.1:
   dependencies:
     mkdirp "*"
 
-mkdirp@*, mkdirp@0.5.1, mkdirp@0.5.x, "mkdirp@>=0.5 0", mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0, mkdirp@~0.5.1:
+mkdirp@*, mkdirp@0.5.1, mkdirp@0.5.x, mkdirp@0.x.x, "mkdirp@>=0.5 0", mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0, mkdirp@~0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   dependencies:
@@ -6978,6 +6939,10 @@ natives@^1.1.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/natives/-/natives-1.1.2.tgz#4437ca1ed8a7f047531ccdfaf2792853df4efa1c"
 
+ncp@1.0.x:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/ncp/-/ncp-1.0.1.tgz#d15367e5cb87432ba117d2bf80fdf45aecfb4246"
+
 negotiator@0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
@@ -7395,7 +7360,7 @@ opn@^4.0.0:
     object-assign "^4.0.1"
     pinkie-promise "^2.0.0"
 
-opn@^5.1.0:
+opn@^5.1.0, opn@^5.3.0:
   version "5.3.0"
   resolved "https://registry.yarnpkg.com/opn/-/opn-5.3.0.tgz#64871565c863875f052cfdf53d3e3cb5adb53b1c"
   dependencies:
@@ -7752,10 +7717,14 @@ pkg-dir@^2.0.0:
   dependencies:
     find-up "^2.1.0"
 
-pkginfo@^0.3.0:
+pkginfo@0.3.x, pkginfo@^0.3.0:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/pkginfo/-/pkginfo-0.3.1.tgz#5b29f6a81f70717142e09e765bbeab97b4f81e21"
 
+pkginfo@0.x.x:
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/pkginfo/-/pkginfo-0.4.1.tgz#b5418ef0439de5425fc4995042dced14fb2a84ff"
+
 plur@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/plur/-/plur-2.1.2.tgz#7482452c1a0f508e3e344eaec312c91c29dc655a"
@@ -8245,6 +8214,17 @@ promisify-child-process@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/promisify-child-process/-/promisify-child-process-1.0.5.tgz#817ad1aec92c013d83bb37e1f143e9b4033d9669"
 
+prompt@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/prompt/-/prompt-1.0.0.tgz#8e57123c396ab988897fb327fd3aedc3e735e4fe"
+  dependencies:
+    colors "^1.1.2"
+    pkginfo "0.x.x"
+    read "1.0.x"
+    revalidator "0.1.x"
+    utile "0.3.x"
+    winston "2.1.x"
+
 prop-types@^15.5.10, prop-types@^15.5.4, prop-types@^15.5.6, prop-types@^15.5.7, prop-types@^15.5.8, prop-types@^15.6.0, prop-types@^15.6.1:
   version "15.6.1"
   resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.6.1.tgz#36644453564255ddda391191fb3a125cbdf654ca"
@@ -8717,7 +8697,7 @@ read-pkg@^3.0.0:
     normalize-package-data "^2.3.2"
     path-type "^3.0.0"
 
-read@~1.0.5:
+read@1.0.x, read@~1.0.5:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/read/-/read-1.0.7.tgz#b3da19bd052431a97671d44a42634adf710b40c4"
   dependencies:
@@ -8939,20 +8919,6 @@ request-ip@~1.2.3:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/request-ip/-/request-ip-1.2.3.tgz#66988f0e22406ec4af630d19b573fe4b447c3b49"
 
-request-promise-core@1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/request-promise-core/-/request-promise-core-1.1.1.tgz#3eee00b2c5aa83239cfb04c5700da36f81cd08b6"
-  dependencies:
-    lodash "^4.13.1"
-
-request-promise-native@^1.0.5:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/request-promise-native/-/request-promise-native-1.0.5.tgz#5281770f68e0c9719e5163fd3fab482215f4fda5"
-  dependencies:
-    request-promise-core "1.1.1"
-    stealthy-require "^1.1.0"
-    tough-cookie ">=2.3.3"
-
 request@2.81.0:
   version "2.81.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
@@ -9097,13 +9063,17 @@ ret@~0.1.10:
   version "0.1.15"
   resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
 
+revalidator@0.1.x:
+  version "0.1.8"
+  resolved "https://registry.yarnpkg.com/revalidator/-/revalidator-0.1.8.tgz#fece61bfa0c1b52a206bd6b18198184bdd523a3b"
+
 right-align@^0.1.1:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/right-align/-/right-align-0.1.3.tgz#61339b722fe6a3515689210d24e14c96148613ef"
   dependencies:
     align-text "^0.1.1"
 
-rimraf@2, rimraf@^2.2.8, rimraf@^2.5.1, rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.2:
+rimraf@2, rimraf@2.x.x, rimraf@^2.2.8, rimraf@^2.5.1, rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.2:
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.2.tgz#2ed8150d24a16ea8651e6d6ef0f47c4158ce7a36"
   dependencies:
@@ -9815,7 +9785,7 @@ stack-trace@0.0.9:
   version "0.0.9"
   resolved "https://registry.yarnpkg.com/stack-trace/-/stack-trace-0.0.9.tgz#a8f6eaeca90674c333e7c43953f275b451510695"
 
-stack-trace@~0.0.9:
+stack-trace@0.0.x, stack-trace@~0.0.9:
   version "0.0.10"
   resolved "https://registry.yarnpkg.com/stack-trace/-/stack-trace-0.0.10.tgz#547c70b347e8d32b4e108ea1a2a159e5fdde19c0"
 
@@ -9834,10 +9804,6 @@ static-extend@^0.1.1:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.4.0.tgz#bb73d446da2796106efcc1b601a253d6c46bd087"
 
-stealthy-require@^1.1.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/stealthy-require/-/stealthy-require-1.1.1.tgz#35b09875b4ff49f26a777e509b3090a3226bf24b"
-
 stream-browserify@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/stream-browserify/-/stream-browserify-2.0.1.tgz#66266ee5f9bdb9940a4e4514cafb43bb71e5c9db"
@@ -10410,7 +10376,7 @@ touch@^3.1.0:
   dependencies:
     nopt "~1.0.10"
 
-tough-cookie@>=2.3.3, tough-cookie@~2.3.0, tough-cookie@~2.3.3:
+tough-cookie@~2.3.0, tough-cookie@~2.3.3:
   version "2.3.4"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.4.tgz#ec60cee38ac675063ffc97a5c18970578ee83655"
   dependencies:
@@ -10942,6 +10908,17 @@ util@0.10.3, util@^0.10.3:
   dependencies:
     inherits "2.0.1"
 
+utile@0.3.x:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/utile/-/utile-0.3.0.tgz#1352c340eb820e4d8ddba039a4fbfaa32ed4ef3a"
+  dependencies:
+    async "~0.9.0"
+    deep-equal "~0.2.1"
+    i "0.3.x"
+    mkdirp "0.x.x"
+    ncp "1.0.x"
+    rimraf "2.x.x"
+
 utils-merge@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
@@ -11354,7 +11331,7 @@ web3-shh@1.0.0-beta.33:
     web3-core-subscriptions "1.0.0-beta.33"
     web3-net "1.0.0-beta.33"
 
-web3-typescript-typings@^0.10.0, web3-typescript-typings@^0.10.2:
+web3-typescript-typings@^0.10.2:
   version "0.10.2"
   resolved "https://registry.yarnpkg.com/web3-typescript-typings/-/web3-typescript-typings-0.10.2.tgz#a9903815d2a8a0dbd73fd5db374070de0bd30497"
   dependencies:
@@ -11568,6 +11545,18 @@ window-size@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.2.0.tgz#b4315bb4214a3d7058ebeee892e13fa24d98b075"
 
+winston@2.1.x:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/winston/-/winston-2.1.1.tgz#3c9349d196207fd1bdff9d4bc43ef72510e3a12e"
+  dependencies:
+    async "~1.0.0"
+    colors "1.0.x"
+    cycle "1.0.x"
+    eyes "0.1.x"
+    isstream "0.1.x"
+    pkginfo "0.3.x"
+    stack-trace "0.0.x"
+
 word-wrap@1.2.3:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"