Primitive renderComponent done
Small refactoring plus tests
Added ref and updates.
Added rootNodes list to enhance complexity, add more tests
Remove escaping of props and markup functions.
Removed getters for final fields and complex getter Node.children
Dropped StreamControllers from contstructors and from node
RequestAnimationFrame implemented
Merge pull request #6 from cleandart/feature/mountComponent

Mount component
Filtering attributes
Basic event handling added.

With set of events from Facebook React.
Merge pull request #7 from cleandart/feature/events

Events handling