Added twitter-bootstrap gem.
Updated application view.
Updated views to use twitter bootstrap.
Mailer works, now I just need to clean it up.
Merge branch 'master' of github.com:kernan/MOOC-TA-Management
Merge branch 'master' of https://github.com/kernan/MOOC-TA-Management into bootstrap
Removed random swap file.
Removed random swap file.
Mailer stuff for Ta test request
Added course search box.
Removed unused user data.
Added user type select.
Doug's recommended changes for mailer
Merge branch 'master' of github.com:kernan/MOOC-TA-Management
Fixed type style.
Merge branch 'master' of https://github.com/kernan/MOOC-TA-Management into bootstrap

Conflicts:
	db/schema.rb
Now TAs can only take tests they have not already taken, otherwise there is a link to that test_result. BOOM.
Added error messages.
Tests now grade. Test views are now restricted.
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