pass view instance as third argument when calling Marionette.Renderer.render

Conflicts:
	spec/javascripts/compositeView.spec.js
	spec/javascripts/itemView.spec.js
	src/marionette.compositeview.js
	src/marionette.itemview.js
Merge pull request #1522 from pklingem/send-view-instance-to-renderer

pass view instance to Marionette.Renderer.render