6.6

Gridcoin Research 6.6/3.1.7.1:
- Incremented protocol version; please upgrade
- Raised checkpoint requirement to 2mil to cut down on number of
broadcasts
- Reduced processing the same checkpoint twice and reduced logging
- Added 5 minute background delay after finding a block in the stake
miner (prevents global rapid fire)
- Made newbie stakeweight dynamic (1% of network weight for newbies);
adjusted newbie block acceptor to comply with the first time staking
rule
- Eliminated one of the hangs in the UI
- Added logging for newbie debugging