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.
Upgrade cancan to cancancan gem
Update wallpaper factory for spec
Test wallpaper factories
Auto test all factories
Merge branch 'migrate-to-cancancan'