Merge pull request #404 from learning-unlimited/django-1.4-support

Django 1.4 support
Added check availability module.
Changed from list to set for a bit higher efficiency.
Integrated check availability module into availability module, deleted check availability module.
Fixes #239: mail server information moved to config file.
Changed concatenation to string formatting.
Teacher events module management web interface.

Altered the existing teacher events module to be able to add and remove teacher training and interview timeslots. The name and friendly name are set automatically with a nice date format.
Fix #284 -- display SplashInfo statistics on dashboard

Since the lunch choices can be overridden by tags, this dynamically
generates entries on the dashboard according to which values have been
selected.
Added the option to morph into a volunteer
(cherry picked from commit db9c447bb6e67b1cb469be95d4f97109609e2828)
Fix typo in 057a2bc71c
Removes devserver-specific settings files
Removes custom DB schema change code

This should be unnecessary now, since we use South. If that is not
the case, revert this commit.
Removes devserver specific Python conf
Removes old, unused FastCGI scripts
Removes SVN configuration
Removes old install script
Removes old, unused lighttpd configurations
Removes Gentoo mime types conf
Removes RT configuration
Removes devserver virtual host configs