[gnome-software] (10 commits) Non-fast-forward update to branch wip/hughsie/xdg-app

[Richard Hughes <rhughes src gnome org>]

The branch 'wip/hughsie/xdg-app' 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:

  74ab500... Add xdg-app support

Commits added to the branch:

  f81037b... Updated Lithuanian translation (*)
  cf92e45... Show something sensible if the markdown parser fails (*)
  3e3d0a9... Updated Hungarian translation (*)
  e455069... Rewrite the os-release parser and factor it out to a separa (*)
  6f2bcf7... Port existing code to use the new os-release parser (*)
  871e520... trivial: Merge back appstream-common back into the AppStrea (*)
  e4d9e60... Never fall back to package descriptions of no AppStream met (*)
  25a6bac... Use GMutexLocker in the AppStream plugin (*)
  d23159f... Automatically assign the management plugin from the AppStre (*)
  c9e4715... Add xdg-app support

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