Merge branch 'development' into fix/underscorePrivate

* development: (29 commits)
  Move call to error reporter to end of handler so that even if reporting the error takes a while, it doesn't block the UI
  Update outdated WETH ranges
  Fix conditional
  Fix top-padding
  Publish
  Update CHANGELOGs
  Add slashes to base URLs
  Fix linter issue
  Fix WETH symbol
  Update snapshot and artifacts
  Replace our EtherTokens with WETH9 from maker
  Fix test description
  Fix a typo
  Add err==null assertions
  Add WETH9 tests
  Use the new snapshot including WETH9 and it's artifacts
  Add WETH9 and mirations
  Fix WETH events watching
  Fix a typo
  Init the _etherTokenContractsByAddress
  ...

2 files changed, 10 insertions, 3 deletions

diff --git a/packages/0x.js/test/utils/constants.ts b/packages/0x.js/test/utils/constants.ts
index d486da581..7b6b2ee7b 100644
--- a/packages/0x.js/test/utils/constants.ts
+++ b/packages/0x.js/test/utils/constants.ts
@@ -1,11 +1,11 @@
 export const constants = {
     NULL_ADDRESS: '0x0000000000000000000000000000000000000000',
-    RPC_URL: 'http://localhost:8545',
+    RPC_URL: 'http://localhost:8545/',
     ROPSTEN_NETWORK_ID: 3,
     KOVAN_NETWORK_ID: 42,
     TESTRPC_NETWORK_ID: 50,
-    KOVAN_RPC_URL: 'https://kovan.infura.io',
-    ROPSTEN_RPC_URL: 'https://ropsten.infura.io',
+    KOVAN_RPC_URL: 'https://kovan.infura.io/',
+    ROPSTEN_RPC_URL: 'https://ropsten.infura.io/',
     ZRX_DECIMALS: 18,
     GAS_ESTIMATE: 500000,
 };
diff --git a/packages/0x.js/test/utils/token_utils.ts b/packages/0x.js/test/utils/token_utils.ts
index bd66d81bf..e9a10d036 100644
--- a/packages/0x.js/test/utils/token_utils.ts
+++ b/packages/0x.js/test/utils/token_utils.ts
@@ -17,6 +17,13 @@ export class TokenUtils {
         }
         return zrxToken;
     }
+    public getWethTokenOrThrow(): Token {
+        const wethToken = _.find(this.tokens, {symbol: WETH_TOKEN_SYMBOL});
+        if (_.isUndefined(wethToken)) {
+            throw new Error(InternalZeroExError.WethNotInTokenRegistry);
+        }
+        return wethToken;
+    }
     public getDummyTokens(): Token[] {
         const dummyTokens = _.filter(this._tokens, token => {
             return !_.includes([PROTOCOL_TOKEN_SYMBOL, WETH_TOKEN_SYMBOL], token.symbol);