neth: new peer server, parseData without @, get gav from coins
Merge pull request #262 from caktux/parse

neth: new peer server, parseData without @, get gav from coins
Network has own thread.
Thread-safe client and remove old State const&-based APIs.
Networking stop fix.
Merge branch 'networkthread' into develop
Merge branch 'develop' of github.com:ethereum/cpp-ethereum into develop

Conflicts:
	neth/main.cpp
parseData shared.
Merge branch 'networkthread' into develop
Avoid crash on Client delete.
Fixed block buffer issue.
Fix version regression.
Merge branch 'networkthread' into develop
neth: fix NameReg, pass the right number of arguments to boost::format