Merge pull request #435 from cookiekiller/master

Updates minified JS files
Implement concrete itemUi classes for lists and trees
Implement AbstractListItemUi for every itemUi opened by a listUI
Implement AbstractTreeItemUi for use by treeUi
Forward TreeUi action and scope to AbstractTreeItemUi
Clean up new Abstracts and move code
Remove some old @todo
Locale should use AbstractListItemUi as well