Delete unneeded enrollment files
Remove class_groups/courses
Remove courses/enrollments and course_enrollment
Refactor enrollments_controller and add routing and request specs
Add more request specs for enrollments
Add request specs to travis
Try to fix travis
[travis] Switch ruby to 2.1
Delete some unneeded enrollment specs
Remove spec/features/courses/enrollment specs
Merge branch 'enrollmentable' into clean_enrollments
Merge pull request #309 from Genshin/clean_enrollments

Clean enrollments