Merge pull request #77 from vikramrajkumar/btsx

Merge upstream
Add data about all existing forks

Conflicts:
	libraries/blockchain/include/bts/blockchain/fork_blocks.hpp
Add version data for fork 11, fix compile error
Fix all cover interest calculation handling
Merge pull request #78 from emfrias/disconnect_old_clients

Disconnect peers running old versions of the code that are unable to process new blocks
Merge branch 'develop' into btsx