gtksourceview3 is a proper depend

git-svn-id: file:///srv/repos/svn-packages/svn@216872 eb2447ed-0c53-47e4-bac8-5bc4a241df78
archrelease: copy trunk to testing-any

git-svn-id: file:///srv/repos/svn-packages/svn@216873 eb2447ed-0c53-47e4-bac8-5bc4a241df78