Fixes issues with scope of FactoryGirl variables.

 On branch rails4
 Your branch is up-to-date with 'origin/rails4'.

 Changes to be committed:
	modified:   spec/features/student_logs_in_spec.rb
	modified:   spec/features/student_retrieves_password_spec.rb
	modified:   spec/features/student_views_scores_spec.rb