[gnome-games] (15 commits) Non-fast-forward update to branch wip/aplazas/gamepad-ui

[Adrien Plazas <aplazas src gnome org>]

The branch 'wip/aplazas/gamepad-ui' 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:

  18b7668... ui: Navigate the collection with gamepads
  bf34a03... gamepad shortcuts

Commits added to the branch:

  7012efe... flatpak: Build Tracker before Grilo (*)
  ae89a91... Update Polish translation (*)
  e48398c... Remove trailing whitespace (*)
  54662a1... doap: Update bug database url (*)
  eb173ec... nintendo-ds: Pass string instead of Uri to icon extractor (*)
  30a5cb3... core: Add Description & Rating (*)
  ca7234a... dummy: Add DummyDescription & DummyRating (*)
  7e19dcf... generic: Add GenericDescription & GenericRating (*)
  e559e6e... Add Game.get_description() and Game.get_rating() to Core, D (*)
  114216b... grilo: Add GriloDescription & GriloRating (*)
  f179d2f... grilo-media: Add description & rating metadata keys (*)
  4752a0f... plugins: Allow retro games to get description & rating (*)
  03d2648... ui: Navigate the collection with gamepads
  bd837d1... shortcuts-window: Add gamepad shortcuts
  cd6c035... flatpak: Temporary fixes

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