[gtk] (5 commits) Non-fast-forward update to branch wip.win32.fixes

[Chun-wei Fan <fanchunwei src gnome org>]

The branch 'wip.win32.fixes' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  ca98a17... demos/gtk-demo: Temporarily disable gui_app attribute
  a2bc139... gdk/win32: Allow sharing WGL contexts with gstreamer
  e64b65f... media/gstreamer: Attempt to use GL for video for Windows

Commits added to the branch:

  7201211... Update Italian translation (*)
  9bdf705... demos/gtk-demo|widget-factory: Temporarily disable gui_app 
  5b2e356... gdk/win32: Allow sharing WGL contexts with gstreamer
  bb771ba... media/gstreamer: Attempt to use GL for video for Windows
  b7efeff... gdkcursor-win32.c: Add cursor map for all-scroll

(*) This commit already existed in another branch; no separate mail sent