[gtk] (9 commits) Non-fast-forward update to branch wip/ebassi/a11y-2

[Emmanuele Bassi <ebassi src gnome org>]

The branch 'wip/ebassi/a11y-2' 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:

  7690d89... Make tooltip properties idiomatic
  5d9db33... Drop unused AtkRegistry path
  333c23a... Notify mapped state to the accessible object directly
  7eec9da... fixup! Make tooltip properties idiomatic
  2045417... Move orientable style classes into GtkWidget
  f35da98... Notify accessibility state changes from GtkWidget
  8e7baee... a11y: Update accessible state for GtkTreeView directly
  fc35c90... a11y: Remove GtkToggleButtonAccessible notify_gtk implement
  8035a68... a11y: Drop notify_gtk() from GtkButtonAccessible
  294b7b2... a11y: Drop notify_gtk() from GtkRangeAccessible

Commits added to the branch:

  ad73c14... Make tooltip properties idiomatic
  04cd79d... Drop unused AtkRegistry path
  05ecf27... Notify mapped state to the accessible object directly
  fc26d73... Move orientable style classes into GtkWidget
  902ac19... Notify accessibility state changes from GtkWidget
  2cb7922... a11y: Update accessible state for GtkTreeView directly
  481c3de... a11y: Remove GtkToggleButtonAccessible notify_gtk implement
  fc1baa3... a11y: Drop notify_gtk() from GtkButtonAccessible
  0d31681... a11y: Drop notify_gtk() from GtkRangeAccessible