Fix storage issues on some browsers

Support debugging failed transactions

Fix optimize flag handling

Fix click handler for warnings/errors

Fix gather imports

Fix execution context change (Web3 & RPC)

Resolve the confusing behaviour of QueryParams

Update ballot contract to solidity 0.4.0.

This wasn't fully working and would create a complex code (at least now)

Compile button and option to disable automatic compilation

Load versions from list.json

Display warnings even if there were no errors

Cleanup compiler load events