vcstools/rosinstall — pull request #38 by tkruse (2012-12-16 12:08:39+00:00)
Title: Duplicate rpp

for review. Small improvements.
Apparently people do get confused when ROS_PACKAGE_PATH has additional entries in fuerte.
http://answers.ros.org/question/50572/duplicate-directories-in-ros_package_path/?answer=50587#post-id-50587

I intentionally did not remove all duplicates from back (only from those coming in through setupfiles), even if that would not functionally change anything, just to keep wysiwyg for .rosinstall entries.

I wonder whether one day the disappearance of duplicate elements could also cause confusion, but with us moving towards catkin, it probably does not matter either way.

Check for corner cases I might have missed, please.