Upgrade django to version 1.5.9
Merge pull request #71 from akatsoulas/upgrade-django

Upgrade django to version 1.5.9
Fix moderator url in stackato configuration.
Merge pull request #72 from johngian/fix-stackato-url

Fix moderator url in stackato configuration.
PEP8 fixes.
Merge pull request #76 from johngian/pep8-fixes

PEP8 fixes.