Reflected property rename in tests.
undoManager#updateSelection should also update currentImage.
Moved undoManager.updateSelection TC.
We don't need bookmarks in image created for IE functional keys.
TC created a separate editor for undoManager.updateSelection test.
Removed unnecessary CSS.
Removed debugger statement.
Moved undoManager.onNavigationKey to editingHandler object.
NativeEditingHandler class will now be created with CKEDITOR.tools.createClass.
Property lastKeydownImage moved to editingHandler.
Renamed wasFunctionalKey to prevKeyGroup, changed its default value to null.