Implemented remote user authentication - closes #1
Added config/database.yml.sample and copy to config/database.yml in course_assets:ci:prepare task.
Added config/redis.yml.sample and updated CI prepare task to copy to config/redis.yml
Use db:create instead of db:migrate and db:test:prepare
Merge pull request #2 from duke-libraries/issue-1

Implemented remote user authentication - closes #1