Merge pull request #2 from garlicPasta/q_nn

reward is now a function, hashQmap implemented
fixed action mapping

the new ANN-state has absolute coordinates.
there is no need to translate them
fixed off by one error
give every robot his own qtable
removed relative coordinates mapping & fixed q
fixed qrobot act & delta_callback & enabled tests
Merge pull request #3 from berleon/fix-run

Fix Robot.act
new max function
fixed pep8
fixed error in find_best_action
rm qlearning_test.py