sorted set gives no extra functionality
simplifications after integrating into wp-admin-blog
replace some ugliness with ERB
use Rails.configuration.cache_classes instead of env.development?
using the now-standard way of sending data into an ajax command
pulled non-app specific widgets-order logic into helper
Widget::Base no longer knows about Widget::Definition
save_widget AJAX API
cast multi_number
clean up
remove some of the screen_options controller methods
clean up
unnecessary tests