added outline view, data is shown correctly (not interactive yet)
Use external datasource object instead of treeController & bindings
show formatted locale name
start with expanded list
selection in outline view works
tweaked textfield sizes
added add locale button
renamed outline datasource to outline controller
added "Add locale" popup window
added deployment target 10.8
remove outline subviews, reduced interim spacing
moved helper to file bottom
added spacing before add locale button
display all ITC locales in "Add locale" screen (without the ones already added)
adding locales works now
only show locales, that aren't marked as to-be-deleted
updated project structure
renamed RMOutlineViewController
deleting locales works now
ask for confirmation, before deleting