Visual Studio 2013 Update 3 needs _WINSOCK_DEPRECATED_NO_WARNINGS for libminiupnpc
Merge pull request #286 from giact/develop-vs2013

VS 2013.3 needs _WINSOCK_DEPRECATED_NO_WARNINGS for libminiupnpc
Timing for EVM.
Merge branch 'develop' of github.com:ethereum/cpp-ethereum into develop
PoC-6 networking.
Minor sync bug.
Version bump.
Fix speed.
Fixes Windows VS2013 build
Merge pull request #289 from SharpCoiner/patch-1

Fixes Windows VS2013 build
Faster mining, minor fix.
Correct packet order.
Merge branch 'develop' of github.com:ethereum/cpp-ethereum into develop
Unambiguous licence.
SWAP & DUP
Version bump.
Mining improvements.
ADDMOD, MULMOD, unsigned->bigint VM fixes.
Build fixes.
Avoid potential conditions where mining is not restarted.