Avoid potential conditions where mining is not restarted.
Separate out miner thread in preparation for own class.
Miner class.
Version bump.
Various small improvements.
Repotting
No need to commit to disk after successful mine - this will happen
during blockchain import anyway.
Docs.
Nicer API for Miner.
POST for PoC-6
Null-account/address PoC-6 updates.
PoC-6 : 12 second blocks, allow multi-level uncles, rejig rewards.
Multi-threaded mining.
Minor PoC-6 fix.
Better uncle building.
Repotting.
Fixed minor VS2013 compile errors and updated projects.
Initial commits for skeletons of IEthXi and libethereumx.
Merge branch 'develop' of github.com:ethereum/cpp-ethereum into develop
Numerous bug fixes.
Version bump.
Manage invalid instructions without bombing.