Admin can now edit user permissions. Changes on the edit privilege page dynamically alter the database as you change the check marks. Whenever a user logs in they get student privileges no matter what.
Merge branch 'master' of https://github.com/craig8196/math-help-queue

Conflicts:
	app/controllers/admin_controller.rb
	app/views/admin/admin_home.html.erb
	app/views/admin/edit_user_permissions.html.erb
	app/views/tas/ta_home.html.erb
	config/routes.rb
fixed merge conflicts
fixed merge conflicts