Update to latest playdoh-lib

This fixes the problem that .pyc files make vendor look modified. It
includes the following commits:

56ac66b Merge pull request #37 from dpoirier/update-django-multidb-router
1bdbc40 Update django-multidb-router to ignore .pycs
efa6125 Merge pull request #35 from gcapizzi/master
3fab887 Upgrade commonware to 0.4.2
578ce1c Merge pull request #34 from Pike/update-requests-1.1.0
f23dc06 update requests to 1.1.0
b9ee4a5 Update to Django 1.4.5
72cace3 Update to django 1.4.4  r=peterbe
baf3a33 Update funfactory  r=peterbe