Pub/Sub should be local. Remove leading / on pub sub.
link license on top of each python files except third party module.
update package.xml. license, maintainer, author, url.
clean up CMakeLists.txt
re-clean up CMakeLists.txt
clean up CMakeList and setup.py
change the package name to rocon_hue
a rocon_devices metapackage for releasing.
migrate msgs into rocon_msgs as independent package