started catkinization process. metapackage rl_suite and rl_msgs have been catkinized
removed erroneous author tags
catkinize rl_common. fixed typo in other package description files.
catkinized rl_env and rl_agent
catkinized rl_experiment. finished with catkinization.
moved readme file
added the standard BSD license to the root of the directory
Merge pull request #1 from utexas-rl-texplore/catkinize

Now catkinized