Update playdoh-lib.

39be91e Merge pull request #45 from rlr/update-django-147
8ffcea3 Update to Django 1.4.7
5c9eeb8 Update funfactory r=mkelly
Merge pull request #158 from rlr/update-playdoh-lib

Update playdoh-lib.
Update playdoh-lib

32967d8 Update to Django 1.4.8
Merge pull request #159 from jgmize/update-playdoh-lib-django-1.4.8

Update playdoh-lib
Merge branch 'master' of git://github.com/mozilla/playdoh into playdoh-update