Merge pull request #7 from foobarbecue/master

Color cards so they stand out and it's clear who played what
Also catch ValueError, for example if user doesn't enter anything.
Merge pull request #8 from foobarbecue/master

Also catch ValueError, for example if user doesn't enter anything.
Move print statements out of resolve_fight so that AIs can call it without a bajillion lines of junk on human's screen.
Return actual result from fight rather than string
Remove now-unused import.
Add space around =
Merge pull request #9 from foobarbecue/master

Move print statements out of resolve_fight so that AIs can call it without a bajillion lines of junk on human's screen.
Add play_match function and command line interface for matches.
Fix spacing per PEP 8.
Start on Kirkby AI, a monte carlo tree search AI based on http://mcts.ai/code/python.html
AI actually works now, just need to massage it into a brain function
Add function to compute opponent's hand from game state
Calculate the hand correctly
Make red's hand actually update
Function no longer necessary now that Kirkby's brain is compatible with brave_rats