mono/xwt — pull request #355 by viniciusjarina (2014-07-10 15:49:05+00:00)
Title: [Xwt] Fixed/Added Tree Operations:

- Xwt.GtkBackend.TreeStoreBackend: Added GetPrevious implementation
- TreeNavigator - Added MoveToFirstSibling/MoveToLastSibling.
- TreeStore - Added InsertNodeAfter/InsertNodeBefore.