Updated base configuration files for Rails 4.0.0.beta1
Use before_action instead of before_filter
Removed attr_accessible in favor of strong_parameters used in Rails 4
Added configurable fallback routing for html/js/json
Removed Sites Controller in favor of keeping About Page under application controller
Disable turbolinks for the moment
Updated Users with Rails 4 strong_parameters
Updated Segments with Rails 4 strong_parameters
Added searchable concern
Added searchable concern and mark as destroyed to downloaded
Removed all_viewable_segments