Made ReinforcementLearningAgent no longer implement the LearningAgent
interface. We're implementing our own learning, so we don't need this
interface.
Modified Play.sh to pass on command line arguments to the Java program
Made ReinforcementLearningAgent.java no longer implement the Agent
inferface.

It's parent class, BasicMarioAIAgent already implements the Agent
interface, so we can just override the methods if we need.