Addd some proxying to RL_env_message and RL_agent_message so that nulls never get passed through, as per issue 83.  Need to do this for all of the functions though.
Addd some proxying to RL_env_message and RL_agent_message so that nulls never get passed through, as per issue 83.  Need to do this for all of the functions though.
cameron-upright/rl-glue,cameron-upright/rl-glue,cosmoharrigan/rl-glue,davidljung/rl-glue,davidljung/rl-glue,ananda621/rl-glue,ananda621/rl-glue,cosmoharrigan/rl-glue