Erez

support per field on context support multiple :on contexts change default force when :on is present

The change from before_filter to before_action (mobile-fu.rb, line 59) breaks compatibility with rails versions < 4.

JQuery On method has an optional selector parameter: `.on( events [, selector ] [, data ], handler(eventObject) )` When using this parameter the outside event don't fire. Example: http://jsbin.com/ENIRaJu/3/