[gnome-games] (23 commits) ...collection-view: Show number of selected games in headerbar

[Alexander Mikhaylenko <alexm src gnome org>]

Summary of changes:

  4de86b8... collection: Add hash, equal and compare funcs (*)
  c23bdbf... collection-model: Add support for removing collections (*)
  8e7545b... selection-action-bar: Disable action bar if no games select (*)
  a5c3aae... collection: Introduce DummyAddCollection (*)
  8354a3d... collection: Introduce UserCollection (*)
  f07d147... ui: Introduce CollectionListItem (*)
  72849f9... ui: Introduce CollectionActionWindow (*)
  37f0c1c... collection-manager: Add support for user collections (*)
  7619c05... collections-page: Support inline "Add Collection" (*)
  48809ad... collection-view: Add support for adding games to collection (*)
  ca97444... collections-page: Replace get_current_collection() with a p (*)
  70c340c... ui: Introduce UndoNotification (*)
  4f97ce1... collection-view: Add support for removing collections (*)
  1fbdb64... collection-view: Add support for renaming user collections (*)
  88a1f99... collection-thumbnail: Refresh the covers whenever collectio (*)
  a1d5dad... collection-view: Invalidate the collection sort on rename (*)
  aa95f9c... collection-view: Add support for removing games from collec (*)
  67c6b3b... collection-view: Refactor favorite_action() (*)
  42cd1d4... collection-empty: Improve label wording (*)
  eb726e8... selection-action-bar: Improve tooltip wording (*)
  981ed6b... collection: Make title public property of Collection (*)
  df70165... collection-thumbnail: Make on_games_changed() private (*)
  a2879ad... collection-view: Show number of selected games in headerbar (*)

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