Publish Remix refactor

 - remix-debug@0.2.2
 - remix-lib@0.3.1
 - remix-solidity@0.2.1
 - remix-analyzer@0.2.1

remix-debug small fixes

Fix Decoding struct in mapping

Add doc for plugin API

Use web3 0.20.7

Docs dappcon

Update Ethdebugger.js

Don't use executionContext in library

Document contract metadata

Fix resolving Function: take in account types

Do not override bytecode when deploying deps lib

added remix-at-dappcon slides.pdf and links to that

Publish remix-debug