add policies directory to auto-load

[catmando]

add config.autoload_paths += %W(#{config.root}/app/policies) to rail_tie.rb

For workaround you will have to add this line to application.rb

[janbiedermann]

rails automatically adds all directories directly under app to autoload_paths in development and eager_load_paths in production, this probably is an issue specific to the app of the original reporter