[gnome-shell] (13 commits) Non-fast-forward update to branch wip/nielsdg/cleanup-plugin-boilerplate

[Niels De Graef <nielsdg src gnome org>]

The branch 'wip/nielsdg/cleanup-plugin-boilerplate' 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:

  496b6f9... plugin: cleanup boilerplate code & document

Commits added to the branch:

  25fbffc... Update Esperanto translation (*)
  121c427... Updated Slovenian translation (*)
  4d649d6... Updated Spanish translation (*)
  6743c18... StWidget: don't forget to invalidate the paint state if not (*)
  925a25d... st: Avoid integer overflow on unpremultiply (*)
  e5ce3d5... messageTray: Re-enable unredirection when banner is destroy (*)
  616852c... thunderbolt: fix missing variable underscore for `enrolling (*)
  a92ad59... Replace Bugzilla by Gitlab URL in DOAP file (*)
  f43f955... Update Friulian translation (*)
  cb452e0... plugin: add some comments on its purpose
  225ad31... plugin: move ::class_init and ::init below
  94bb40a... plugin: use G_DECLARE_FINAL_TYPE
  7c2f497... plugin: style consistency fix

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