Update VS build for blockchain.h/.cpp move.
Disable dead code (fix warning).
Conditionally include warning suppression pragmas (VC builds only).
Merge pull request #71 from evoskuil/develop

Fix VS build for blockchain move, fix test warnings.
Merge pull request #72 from pmienk/develop

Correct test expectation.
Add librt to test dependencies.
Merge pull request #73 from evoskuil/develop

Add librt to test dependencies.