[mutter] (20 commits) Non-fast-forward update to branch benzea/gamma-fix-master

[Benjamin Berg <bberg src gnome org>]

The branch 'benzea/gamma-fix-master' 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:

  c733274... kms-crtc: Cache last set gamma value and prefer it over rea
  578a86c... renderer-native: Re-set gamma curve while configuring CRTCs

Commits added to the branch:

  bba985f... Updated Spanish translation (*)
  52587f7... Czech translation (*)
  309fe2d... Update Basque translation (*)
  b039def... window-stream-src: Record a full frame on damage (*)
  ea7be8b... renderer-native: Cleanup unused variable (*)
  661fe77... backends/native: Move pixel format helper to separate file (*)
  21a21e7... cogl/scanout: Allow blitting to framebuffer (*)
  098360f... clutter/stage-view: Add method to peek scanout (*)
  b1648e7... monitor-stream-src: Blit scanout when available (*)
  9e01195... clutter/stage: Add new before_paint signal hook (*)
  b63e94a... meta/stage: Process BEFORE_PAINT watchers at ClutterStage.b (*)
  aed286a... monitor-stream-src: Generalize function (*)
  e6a13e5... monitor-stream-src: Add before-paint watch to catch scanout (*)
  2593998... build: Bump libgbm requirement (*)
  a00ab5f... stream: Remove cursor if it's invisible (*)
  21ac013... Update Galician translation (*)
  6381ba2... Updated Lithuanian translation (*)
  7d4f62e... Update Croatian translation (*)
  64ef3b4... kms-crtc: Cache last set gamma value and prefer it over rea
  b6dbe11... renderer-native: Re-set gamma curve while configuring CRTCs

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