Cleanup all subscriptions when a view is removed from the DOM

src/stdlib/space-pen-extensions.coffee

@@ -1,5 +1,6 @@
 _ = require 'underscore'
 {View} = require 'space-pen'
+jQuery = require 'jquery'
 
 originalRemove = View.prototype.remove
 
@@ -17,3 +18,8 @@ _.extend View.prototype,
   remove: (args...) ->
     @unsubscribe()
     originalRemove.apply(this, args)
+
+originalCleanData = jQuery.cleanData
+jQuery.cleanData = (elements) ->
+  jQuery(element).view()?.unsubscribe?() for element in elements
+  originalCleanData(elements)