allow students to view slides on completed courses
fix bug so students can view slides
clean up student views slide integration test
Merge branch 'auth-view-slides'

* auth-view-slides:
  clean up student views slide integration test
  fix bug so students can view slides
  allow students to view slides on completed courses

Conflicts:
	spec/fabricators/user_fabricator.rb
	spec/support/features/authentication_helper.rb
Rerecord cassettes.
Switch to using application.travis.yml for travis.