Moved set of events to listen on by default to a property of EventDispatcher so it can be overridden
improve Ember.View#createChildView container support


Now view instances passed to View#createChildView
should get both parentView and container properties
updated.
ContainerView#initializeViews learns about the container
Merge pull request #2821 from stefanpenner/create_child_view_container_support

improve Ember.View#createChildView container support
Merge pull request #2810 from robharper/feature/customize_events_to_dispatch

Allow base set of events to listen on to be customized in EventDispatcher (for performance)
Added ability to change event type on which Ember.LinkView is triggered
Merge pull request #2811 from robharper/feature/link_to_event_customization

Adds support for on="eventType" attribute in linkTo helper