Initial debugger work.
Merge branch 'release-poc-4' into debugger

Conflicts:
	alethzero/MainWin.cpp
	alethzero/MainWin.h
	libethereum/Common.h
Merge branch 'develop' into debugger

Conflicts:
	alethzero/MainWin.cpp
	alethzero/MainWin.h
poc 5 IP
Fixed EXP operation
Debugger.
Merge branch 'debugger' into develop
Merge pull request #159 from dennismckinnon/develop

Fixed EXP operation
Fix AND and OR.
&&/|| in LLL
&, |, ~, ^ in LLL.
Serpent integration.
Merge branch 'develop' of https://github.com/ethereum/cpp-ethereum into revert-ncurses-split
Date fix.
Version bump.
Merge branch 'develop' of https://github.com/ethereum/cpp-ethereum into revert-ncurses-split
New peer server.
Merge branch 'develop' of https://github.com/ethereum/cpp-ethereum into revert-ncurses-split
v12 peer server IP address
Fix for.