Nitpick commit

git-svn-id: svn+ssh://svnrepo/projects/nitpick/trunk@7493 561c3618-0fe6-0310-b5d6-fc65c73fee30
Nitpick commit

git-svn-id: svn+ssh://svnrepo/projects/nitpick/trunk@7494 561c3618-0fe6-0310-b5d6-fc65c73fee30
Check for foreign repositories which have disappeared and remove them from the
cached DB.


git-svn-id: svn+ssh://svnrepo/projects/nitpick/trunk@7495 561c3618-0fe6-0310-b5d6-fc65c73fee30