Call a bot a bot
Updated comments, added a smarter PassBot, imposed requirement that Player be subclassed
Bug fixes
Add a variant on PassBot
Added HumanPlayer
Added SmartBot, which plays based on the hole card
Fixed passing at end of game; still need to not prompt someone out of cards to bid in the first place
Fixed behavior at end of game when one player is out of cards
Refactoring of SmartBot and its descendent
Cleaned up printing/logging
Added RandomBot