Add Coffee source for initial Backbone/Heap integration.
user
```coffeescript
_    = @_
View = Backbone.View::constructor

Backbone.View::constructor = (args...) ->
  result = View.apply @, args
  events = _.result @, 'events'

  for key, method of events
    # Split event name from selector (lifted from backbone.js)
    [original, eventName, selector] = key.match /^(\S+)\s*(.*)$/

    eventName += ".heap.delegateEvents#{@cid}"
    heapTrack = do (method) ->
      # TODO (matin): Avoid double-counting events.
      () => heap.track method

    if selector is ''
      @$el.on eventName, heapTrack
    else
      @$el.on eventName, selector, heapTrack

  return result
```
assistant