Added Spine.app.Controller::navigate
Spine.app.History::navigate now defaults silent to false
Updated Spine.collection.List::removeAll to properly send all removed items in the event
Added emptyView support Spine.view.container.CollectionContainer
Fixed a bug with Spine.view.container.CollectionContainer's handling of filter events
Added find, findFirst and findLast to Spine.view.container.Container
Added Spine.view.container.Viewport
Added Spine.view.layout.NoLayout
Fixed a bug in Spine.view.Box when calling addCls or removeCls before render