fix 'catkin locate' for symlinked pkgs inside workspace (#624)
fix 'catkin locate' for symlinked pkgs inside workspace (#624)

* fix 'catkin locate' for symlinked pkgs inside workspace

* fixed 'catkin locate' --relative
rhaschke/catkin_tools,rhaschke/catkin_tools,catkin/catkin_tools,rhaschke/catkin_tools,catkin/catkin_tools,catkin/catkin_tools,catkin/catkin_tools