TODO

### plugin
  
  - [ ] ui
    - [ ] designer
    - [ ] design
    - [ ] stack
      - [x] frontend
      - [ ] build tools
  
  - [ ] data source
    - [x] geth node
    - [ ] rpc proxy
      - [x] geth node
      - [ ] whitelist
      - [ ] (perf) proxy-level caching
      - [ ] (perf) block listener websocket
    - [ ] provider engine
      - [x] top-level cache
      - [x] top-level current block
      - [x] subproviders should act like normal providers
        - [x] return in payload wrapper
      - [ ] subprovider implementations
        - [x] static
        - [ ] filters
          - [x] block
          - [x] log
          - [ ] pendingTx
        - [x] rpc
        - [x] vm
        - [x] tx signing

  - [ ] dev ops
    - [ ] test api load
    - [ ] publish plugin to store
  
  - [ ] external info
    - [ ] soft launch email
    - [ ] consensys blog post?

(2) dapp fallback lib
  iframe wrapper api
  data source
    ?

(3) browser-browser

(4) mobile extension / app