- revert _gdk_x11_display_impl_get_type to gdk_x11_display_impl_get_type
as its not a local symbol (it's used in gtk and immodules)
- remove gdk_window_set_screen.
- cleaned gdk_window_set/get_mwm_hints from static atoms.
- gdk_window_iconify use proper screen.
- remove assert and change comments in gdk_window_foreign_new_for_display
- gtk_drag_get_ipc_widget uses GdkDisplay now
- reimplemented GdkDrawable get_display() in term of GdkDrawable get_screen()
- rename gdk_display_manager to _gdk_display_manager and remove it from gdkx.h and gdkprivate.h
- removed scr and dpy abbreviations.
873bdc26a6