Update fc submodule
Fix typos
Fix warnings
Deprecate BTS_BLOCKCHAIN_DELEGATES in favor of BTS_BLOCKCHAIN_NUM_DELEGATES
Use override keyword when overriding virtual functions
Move new wallet.dox to docs folder
Delete old extended_address files
Merge pull request #69 from vikramrajkumar/master

Cleanup
Lotto: Integration transaction branch
Merge from updtream/master