getting ready for 0.5.9
0.5.9
need angles dependency for tests
Update package.xml

Change run and build dependency to just test dependency.
adding angles to find_package, removing from catkin_depend
Merge branch 'fix_angles_dependency' of https://github.com/ros-planning/moveit_core into fix_angles_dependency
Merge pull request #175 from ros-planning/fix_angles_dependency

need angles dependency for tests
Added getSubgroups() helper function to joint model groups
Merge pull request #178 from davetcoleman/get_subgroups_helper

Added getSubgroups() helper function to joint model groups