[gtk] (41 commits) Non-fast-forward update to branch dropdown-checkmark

[Matthias Clasen <matthiasc src gnome org>]

The branch 'dropdown-checkmark' 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:

  d323c88... dropdown: Add a checkmark to the selected item

Commits added to the branch:

  4ea2a66... a11y: Add parsing code for accessible values (*)
  9e4316b... a11y: Add an "accessibility" section to the builder XML tre (*)
  7702670... docs: Document the "accessibility" custom tag (*)
  fbb08a3... a11y: Add child state change to GtkATContext (*)
  8d46bd1... a11y: Notify of changes in the children list (*)
  f1e14c4... a11y: Implement ChildrenChanged atspi.Event (*)
  8075632... a11y: Handle relations in UI files (*)
  698cbee... a11y: Move ChildrenChanged emitter to ATSPI utilities (*)
  e45dd77... a11y: Emit ChildrenChanged for toplevel list changes (*)
  1d80288... stack: Change ordering for removal (*)
  a11ab6c... a11y: Handle stack case for addition/removal (*)
  5b2b2fe... a11y: Fix up state / change enum confusion (*)
  1e13acb... widget: Don't add reordered children (*)
  374a451... a11y: Don't present HIDDEN accessibles (*)
  b12992c... a11y: Handle HIDDEN state changes (*)
  46e754a... a11y: Skip non-presented children when required (*)
  e7b290d... a11y: Improve child notification for toplevels (*)
  89a8c89... a11y: Improve child index helpers (*)
  274f9ad... a11y: Emit child notification when toplevels get hidden (*)
  bba6d60... window: Maintain accessible HIDDEN state (*)
  2546b88... a11y: Redo child-added/-removed for toplevels (*)
  434b145... stack: Don't transition when the visible child is remove (*)
  7c10657... Cosmetics (*)
  9a943e2... stack: Update HIDDEN a11y state for stack pages (*)
  8ffb398... a11y: Handle all cases for state change (*)
  adb7676... a11y: More State<>Change confusion (*)
  313ba02... color editor: Add accessible labels (*)
  e050a26... builder: Expot _gtk_builder_boolean_from_string privately (*)
  fce455a... a11y: Parse booleans in ui files as expected (*)
  677ea5f... a11y: Reuse builder parsing for enums (*)
  f981ab7... Remove erroneous preconditions (*)
  0fddf73... a11y: Add some parser tests (*)
  c783e9a... Treat tristate as an enum when parsing (*)
  8e6701c... gtkmediafile: Use cubic volume function (*)
  6d7e56b... cloudprint: Make compile without warnings (*)
  08004d4... Merge branch 'wip/otte/for-master' into 'master' (*)
  0c49f73... Merge branch 'matthiasc/a11y-buildable' into 'master' (*)
  8df883e... Merge branch 'matthiasc/atspi-child' into 'master' (*)
  3a119a3... dropdown: Make search entry shrink
  25d2efe... dropdown: Add a checkmark to the selected item
  907fc30... gtk-demo: Add checkmarks to all dropdown demos

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