Direct-Reciprocity is evolve.py is broken

All simulation functions in evolve.py are broken.

[ ] AllC_AllD_race got hacked up and currently don't seem to be using the WeAgent.
[ ] Pavlov_gTFT_race seems to have some sort of pickling error.
[ ] bc_rounds_race seems to run... but its bugged. Its showing AllC winning in the heatmaps.
[ ] limit_rounds_race doesn't seem to do anything at all!

maxkw / evolution