Yet another development release leading up to GTK+ 2.16.
Changes from GTK+ 2.15.4:
- GtkAction: Rename gtk_activatable_reset to gtk_activatable_sync_action_properties to make it easier to bind
- GDK: The DirectFB backend has been restored to basic function
- GDK: The RANDR support in the X11 backend has been made more robust
- Changes that are relevant for theme authors: GtkEntry now has a ::progress-border property and use fg/bg[SELECTED] for drawing progress