Install rails_admin gem
Configure rails_admin
Disable bulk delete
Ignore Mini-profiler-resources model
Merge pull request #55 from wallgig/rails-admin

Install rails admin
Upgrade rack-mini-profiler. Do not load profiler in admin screens.
Install pundit gem
Configure pundit
Create user policy
Migrate UsersController authorisation checks to pundit
Define wallpaper policy
Rename resize_image_to to resize_image_to!
Define purity scopes
Remove history method
Create a set_profile_cover? policy
Add category and tag policy. Update categories controller
Remove old methods
Move /api/v1/tags to /tags
Change exclude_ids param to id_not_in
Move tag create api to tag controllers