Added functionality to find duplicate plugin filters and display a warning on the edit screen.
Fixed search for parent permalinks.  Was stopping the search even if there were no plugins and a parent was found.
Fixed admin url links in error messages.
Fixed plugin group links on the plugins page.

git-svn-id: https://plugins.svn.wordpress.org/plugin-organizer/trunk@1049631 b8457f37-d9ea-0310-8a92-e5e31aec5664