(meta)package.xml should not depend on catkin

Doing so makes this page go crazy: http://ros.org/wiki/catkin
Removing catkin as a build dep and fixing typo
Merge pull request #12 from mikeferguson/patch-1

(meta)package.xml should not depend on catkin
adding setup.py files
Merge branch 'groovy-devel' of github.com:ros/executive_smach into groovy-devel
Merge branch 'hydro-devel' into groovy-devel