* app/widgets/widgets-enums.h: Put the GimpContainerTreeView enums
here instead of exposing them through silly class instance
members.

* app/widgets/gimpcontainertreeview.c: 
* app/widgets/gimpcontainertreeview-dnd.c
* app/widgets/gimpdatafactoryview.c
* app/widgets/gimpitemtreeview.c
* app/widgets/gimplayertreeview.c
* app/widgets/gimpsettingseditor.c
* app/widgets/gimptemplateview.c
* app/widgets/gimptoolview.c: Clean up and use new enum names.

svn path=/trunk/; revision=27666