[mutter] (4 commits) Non-fast-forward update to branch wip/texture-purge-on-nvidia

[Ray Strode <halfline src gnome org>]

The branch 'wip/texture-purge-on-nvidia' 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:

  41f8c9e... wip! force texture updates
  00924cf... fixup! wip! force texture updates

Commits added to the branch:

  c3e1ed3... wip! force texture updates
  e7c64a1... fixup! wip! force texture updates
  8598668... wip! backend: add signals for reporting suspend and resume
  0139684... wip! compositor: save and restore textures on suspend