Make tests passing with Python 3.4.
Add Python 3.3 to .travis.yml.
Don't use python-memcached when testing.

Python-memcached is not working well with Python 3.4.
Move django-debug-toolbar to sandbox_requirements.txt.
Use pinocchio in version comatible with python 3.4.
Test on Python 3.4.
Merge pull request #24 from tomwys/master

Tests passes on Python 3.3 and 3.4.