[gtk] (22 commits) Non-fast-forward update to branch widget-class-actions

[Matthias Clasen <matthiasc src gnome org>]

The branch 'widget-class-actions' 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:

  e8f8fa5... action muxer: Add some convenience api
  04ad9ef... entry: Remove hacky code
  425dd94... Allow registering actions per-class
  e223f46... text: Use the new action machinery
  63be6b1... label: Use the new action machinery
  79e029a... textview: Use the new action machinery
  4cb4591... window: Use the new action machinery
  e18da38... link button: Use the new action machinery
  ac6447b... color chooser widget: Use the new action machinery
  4b63bc0... Docs: expand actions chapter

Commits added to the branch:

  732630e... testsuite/a11y/about: Fix exp. output per 31066a69 (*)
  8cfdd6c... Remove an accidental addition (*)
  73320fc... action muxer: Add some convenience api
  7d58c46... action muxer: cosmetics
  aab458e... inspector: Redo the action page
  734cd26... inspector: Fix actionable handling
  8720e2e... widget: Cosmetics
  ff48e42... widget: Remove gtk_widget_list_action_prefixes
  d0f3f0a... entry: Remove hacky code
  a798bcf... file chooser: Stop using gtk_widget_get_action_group
  50236aa... places sidebar: Stop using gtk_widget_get_action_group
  8b334e0... Drop gtk_widget_get_action_group
  9001caa... Give the action muxer a widget
  c166ee3... Allow registering actions per-class
  e433f8e... text: Use the new action machinery
  aea8cab... password entry: Adapt to action name change
  7849c3a... label: Use the new action machinery
  810587c... textview: Use the new action machinery
  140e816... window: Use the new action machinery
  d35be08... link button: Use the new action machinery
  7ee4d11... color chooser widget: Use the new action machinery
  bf7b3c1... Docs: expand actions chapter

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