Dominance.py can either output a game or a role:strategy map; options have changed
switched default from 'strategies' to 'game'
Accomodating pre-computed IEDS

IEDS is no longer performed in AnalysisScript.py. Instead,
AnalysisScript.py can accept a -nd argument specifing the location of a
game containing only non-dominated strategies (the output of
Dominance.py). If -nd is provided, all analysis is performed on that
game, and the input game is used only to print out the strategies that
have been eliminated.