+ Add gem mongoid
+ Generate Mongoid config file
- Remove active record related config
+ Add config for Mongoid logging
+ Add gem 'strong_parameters' and integrate it with Mongoid
* Use strong parameter approach in controllers
* Change a mongoid config to enable eager loading
! Forgot to permit `tag_list` for Item
* Make models work with Mongoid instead of AR
- Remove database.yml due to mongoid.yml
+ Add mongoid config for production
+ Add gem `mongoid_rails_migrations`
- Remove all migrations (they were for relational DB)
- Remove `pgbackup` in deploy script
Mongo add-on will do backup for us daily
Merge branch 'mongoid'