All models are now using ActiveModel::ForbiddenAttributesProtection, which shifts the responsibility for parameter whitelisting for mass-assignments from the model to the controller. attr_accessible has been disabled and removed as this functionality replaces that.
The require_parameters method in the ApplicationController has been removed in favor of strong_parameters' #require method.
It is important to note that there is still some refactoring required to get all parameters to pass through #require and #permit so that we can guarantee that parameter values are scalar. Currently strong_parameters, in most cases, is only being utilized to require parameters and to whitelist the few places that do mass-assignments.
We want to skip the filter for sessions controller so that we can login
and we want to skip the filter for static pages because those should be
visible to visitors.
