[gnome-games] (4 commits) Non-fast-forward update to branch wip/exalm/appdata

[Alexander Mikhaylenko <alexm src gnome org>]

The branch 'wip/exalm/appdata' 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:

  7d8acbc... appdata: Fix strict validation errors
  0bb0fec... build: Use strict validation for appdata

Commits added to the branch:

  4d659c4... flatpak: Update grilo and grilo-plugins options (*)
  a2405f6... application-window: Explicitly null-check application after (*)
  5faa71a... appdata: Fix strict validation errors
  97bb291... build: Use strict validation for appdata

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