[gnome-calendar] (23 commits) ...core/recurrence: Port to gatomicrefcount

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

Summary of changes:

  baacf69... calendar-monitor: Shuffle some variables around (*)
  5f67c55... calendar-monitor: Replace mutex by a rw-lock (*)
  791d443... calendar-monitor: Simplify locking code a bit (*)
  16b9337... calendar-monitor: Move events hash table to shared section (*)
  a0963c0... calendar-monitor: Properly update and delete recurrent even (*)
  db43bcd... event: Trivial style fix (*)
  1bb834e... event-widget: Properly dispose template children (*)
  1beb3c9... manager: Remove unnecessary comment (*)
  6a5c022... utils: Add boolean flag for showing MOD_ALL (*)
  5329c22... views: Don't show MOD_ALL (*)
  dbd2f0d... event-editor/dialog: Don't apply changes to readonly events (*)
  82d8ec3... event-editor/sections: Add vfunc to check for changes (*)
  df5b9e7... event-editor/dialog: Don't apply changes if nothing changed (*)
  9664118... event-editor/dialog: Don't show MOD_ALL if schedule changed (*)
  185490e... event-editor/dialog: Don't ask mod type if event wasn't rec (*)
  23dedc0... event-editor/schedule: Trivial autoptr cleanup (*)
  cc696bc... window: Properly hide start headerbar buttons (*)
  2f1fe2b... core/event: Fix transfer annotation (*)
  679a392... event-editor/dialog: Don't hide dialog on cancelling operat (*)
  1023465... event-editor/dialog: Improve detection of MOD_ALL exclusion (*)
  502b381... event-editor/dialog: Properly handle editing recurrent even (*)
  e3c7a1d... core/manager: Remove old hack around recurrences (*)
  1fee8ff... core/recurrence: Port to gatomicrefcount (*)

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