fixed deprecation warnings
Fix undefined method error for class_inheritable_hash method in Rails 3.2.
Fix for getting around mass assignment whitelist.
make attributes attr_accessible

Rails 3.0 makes everything protected by default.
rails 4 compability
Merge pull request #1 from SocialWOD/master

Rails 4 Upgrade
Merge pull request #2 from andres99x/rails4

Rails4