Make model available to Backbone.Marionette View.

marionetteview.js

return Backbone.Marionette.ItemView.extend({
	// Pass model to view because template 'this' is not current view.
	// based on: https://github.com/marionettejs/backbone.marionette/blob/master/docs/marionette.view.md#basic-example
	//
	templateHelpers: function() {
		return { model: this.model };
	}
});