version 3.2.2
 - Pre-release version bump to 3.2.2
 - Bump required Vala version to 0.13.2
   Required for Clutter.TableLayout in clutter-1.0.vapi, which was added
   when Vala switched to use GIR files.
 - Connect thumbnail nav button signals
   The thumb nav widget crashed when clicking the buttons to scroll the
   thumbnail view. This was caused by connecting to the wrong signals:
   ‘button-pressed-event’ and ‘button-released-event’, rather than
   ‘pressed’ and ‘released’. There was also some duplicate code for
   creating the left button, which led to a GtkButton being leaked when
   the thumb nav was created. Fixes bug 660686.
 - Use an idle handler to generate thumbnails
   A thread was used for generating thumbnails for CheeseThumbView, but
   this had problems with concurrent access to the GtkListStore which
   backs the thumb view, as in bug 648936. A simpler approach is to use an
   idle handler, which avoids the need for acquiring the GDK lock.
 - Added/Updated Documentation
   - fr, courtesy of Bruno Brouard
   - hu, courtesy of Gabor Kelemen