vcstools/rosinstall — pull request #85 by tkruse (2013-07-20 14:50:41+00:00)
Title: fix #84: roslocate broken for old distros, also metapackage not recognized

get_cached_release raises RuntimeError for all distro names <= fuerte, need to handle.
Detecting metapackage export manually, not sure whether library function exists somewhere, did not see any in catkin_pkg

Modified unit tests to test the new function