This commit removes unneeded imports and addresses some small style issues

fixing imports

removed unnecessary comment

undoing a silly change

fix weirdness with PayoffData
This commit adds ObservationMatrix and sequential stopping rules

test set up working.  small refactor in random games

building a new sort of game

observation matrix and equilibrium stopping rule in place

fixed brokenness in normal noise generator.  Also, sequential wasn't passing all the data during its main loop.

small changes

tests pass in a meaningful way.  Patching now fixed

removed unused import

more tests
commenting out a broken piece
Merge pull request #3 from bcassell/master

the old pull request plus sequential module