Merge branch 'master' into poc-8 

Merge branch 'poc-7+' 

Merge branch 'develop' into poc-7+ 

Merge branch 'develop' into poc-6+ 

Actually stop getting chain once no more to grab. 

The last develop commit with poc5-compatible networking. 

Networking fixes. Minor UI improvments.

Merge branch 'master' of github.com:ethereum/cpp-ethereum 

Fix for when/unless. 

New LLL compiler. Minor fix.