version 3.1.91
  - Fix cheese_effect_load_effects prototype
  - help: Reviewed and improved new Mallard help
  - help: Added Mallard help, removed DocBook help
  - cheese-effects: implement loading cheese effects in libcheese
  - cheese-camera: fix 2 gst object reference leaks
  - cheese-camera: fix 3 string memory leaks
  - about: Update credits according to AUTHORS file
  - cheese-camera: Print debug of messages
  - thumb-view: start monitoring at startup
    Before this we started monitoring each for each photo/video
    capture. That was a bit inefficient as the directories in which photos
    and videos are saved are known and don't change during the program's
    lifetime.
    Now we start the monitoring at startup only once.