Updated Django dependency to 1.4.5

Thanks to http://getshrubbery.com/ for update notification.
Merge pull request #135 from doismellburning/dependency_update

Updated Django dependency to 1.4.5 -- thanks to Kristian
To fix the host header poisoning security issues we also need to set ALLOWED_HOSTS
Add in the accounts module
Remove submission of counts and add image display backend
Add image display
Update frontend to improve keyboard layout; add graphing; add report; add saving to CSV; other miscellaneous cosmetic changes
Updated project licence
Updated requirements; added setup README and initial image CSV
Improve WSGI file for apache deployment/database configuration management
Add support to force https; colour maps from the database; Django extensions
Updated licence