UI: Added 'voting' tab + dialogs: Create election, Election details, Timestamper settings
Voting

Requesting pubkeys, receiving pubkeys, receiving messages with voting encoding type,
UI signals, SQL tables, BitcoinThread, Casting votes, etc
Few fixes
Few more fixes
Fixes
Fix
Python 64-bit segfault fixed
Fix
Revert disabling commitments to blockchain
If receiving messages before the election has been initialized, store them for after initialization
Re-voting
Don't start the application with the voting tab opened
Merge branch 'master' into github-master