changed bootstrap defaults
better plotting
removed debug prints
made more game classes available as command-line arguments

PMX: poly-matrix games
ind: independent random payoffs for an asymmetric game
fixed bug on 1-player roles

Elaine was getting empty games when running DPR. This was because the
full_game_profile() function couldn't handle 'games' with 1 or 0 players,
but they can arise when one role has one player but another role is getting
reduced.