Merge branch 'gasearch'
virtualenv_activate file no longer required for local test servers
Added space at the bottom of the course list
Improve the Prerequisites section

plus some minor wording/styles.
Merge branch 'master' of github.com:ChrisCooper/QcumberD
style... almost pep8
use default_dict instead of postgres-only distinct() for compatibility
Removed the unused scraper models and added initial migration
Corrected invalid credential behaviour
Merge pull request #20 from uniphil/compatibility/db/distinct

SQLite Support
Merged in master for SQLite support
Refactored section info models, merged migrations