[gtk] (11 commits) Non-fast-forward update to branch action-muxer-speedup

[Matthias Clasen <matthiasc src gnome org>]

The branch 'action-muxer-speedup' 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:

  9586e39... debug spew for window closing
  3211781... Speed up action muxer setup
  9f4e5b9... Speed up action muxer setup more
  a33adcb... inspector: Remove action support temporarily
  0ec0340... actionmuxer: Add some more api
  a180930... actionmuxer: Port internal users
  8ed988e... actionmuxer: Stop implementing GActionGroup
  d383ab5... Add gtk_action_muxer_list_actions
  127bb69... inspector: Make the actions tab work again
  e0ab60e... actionmuxer: Create observed_actions on demand
  07a0295... actionmuxer: Create groups on deman
  3b80cbd... dump stats

Commits added to the branch:

  342ac32... Speed up action muxer setup
  efacdd6... Speed up action muxer setup more
  8aa0a36... inspector: Remove action support temporarily
  d231e80... actionmuxer: Add some more api
  42e0eb9... actionmuxer: Port internal users
  110309a... actionmuxer: Stop implementing GActionGroup
  532436b... Add gtk_action_muxer_list_actions
  01dff4d... inspector: Make the actions tab work again
  5f0244a... actionmuxer: Create observed_actions and groups on demand
  0c01f67... actionmuxer: Use an array for accels
  8f246ba... actionmuxer: Update docs and clean up headers