Modified Conway Game of Life - 1

Based on the single species game of Life code of J.P.Armstrong (http://www.jparmstrong.com/blog-conwaysgameoflife.yb): http://pygame.org/project-Conway%E2%80%99s+Game+of+Life-852-.html this is an extension that allows 2 species to either evolve without interaction (temperature = 0), or by means of a probabilistic interaction. Relevant part of the theory can be found in the pdf excerpt accompanying the code. Provide the temperature of the system as the 1st argument: example: python gol-temp.py 0.001