Add compatibility for Django 1.5

Fixes Issue #33.

Deprecation warnings are from django-debug-toolbar.

- Update django versions in the documentation
- Update version number in the readme
- Update packages to 1.5 compatible version numbers
- Fix Deprecation warning due to lack of mail_admin filters
- Django.conf.urls.defaults is deprecated, instead use Django.conf.urls
- Add missing filter
- Add console logging
- Add allowed hosts to prod settings