fixes for appindocator

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
fix tiny leak

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
Merge branch 'gpaste-3.10' into gpaste-3.12

* gpaste-3.10:
  fix tiny leak
  fixes for appindocator