Ignore extraneous emacs files
Remove fk constraint that requires an assignment to be part of a course, and add a suitable comment
Fix error message to say "signed up" instead of "sign up"
Fixes advertise_for_partner screens to be worded more reasonably.
Changes db code slightly to commit changes to multiple fields with 1 save.
First set of tests for teammate advertisements.
Update the schema
Add advertisement permissions to seeds.rb
Modifications on Cucumber test: manage_advertisements
Cucumber feeatures of testing advertisement functions.
Make sure the admin user is created even if it exists