Cleanup

git-svn-id: http://svn.code.sf.net/p/autowikibrowser/code/AWB@10112 5227b50d-9349-4574-b055-4b0a7525e11c
Dispose of Generic plugins when deleted

git-svn-id: http://svn.code.sf.net/p/autowikibrowser/code/AWB@10113 5227b50d-9349-4574-b055-4b0a7525e11c