[mutter] (11 commits) Non-fast-forward update to branch wip/carlosg/no-scaled-views-check-in-thread

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/no-scaled-views-check-in-thread' 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:

  7fd2c26... backends/native: Do not check for scaled views in the input

Commits added to the branch:

  374a811... Update Serbian translation (*)
  561ef38... Update Galician translation (*)
  21a09fb... Tag release 40.0 (*)
  4a5b983... Post-release version bump (*)
  9e36ff2... Update British English translation (*)
  3b70288... Update Vietnamese translation (*)
  9e10d2f... cogl: Drop "volatile" from static GTypes in manual registra (*)
  bc1026d... clutter: Drop "volatile" from static GTypes in manual regis (*)
  dc94819... core: Drop "volatile" from static GTypes in manual registra (*)
  3f74132... backends: Store whether views are scaled in MetaViewportInf
  d3f850c... backends/native: Check whether views are scaled via MetaVie

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