[gnome-games] (24 commits) Non-fast-forward update to branch wip/exalm/tnum

[Alexander Mikhaylenko <alexm src gnome org>]

The branch 'wip/exalm/tnum' 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:

  c9a47aa... snapshot-row: Use tabular numbers

Commits added to the branch:

  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
  b9b8fbf... snapshot-row: Use tabular numbers