added migration for admin, migrated db. needs tests and admin controller
added admin user index and 404'd non-admins trying to view it
Delete users works, hooray
Merged in master branch with reviews
Merge branch 'master' into admin
WIP admin functionality exists, the admin only user index and delte ability is complete, reviews admin index/delete almost complete, gems delete not started
Finished admin index pages for reviews and users and added ability for admins to delete gems, reviews and users
Merge pull request #17 from LaunchAcademy/admin

Admin