Refactored nodes to better tackle nested nodes.
Renderer uses the new Container API.
Fix rendering with nested nodes present.
Remove obsolete test.
Fix ImageView's getDOMPosition.
Enable new Controller API for List.
Rename Renderer.doc to Renderer.docController.

Reduces confusion.
Render list views using 'ul' and 'ol' elements.
Changed Node API for tracking position of changes.
Cleanup.
Let TextView manage annotations itself.
Make lists breakable.
Merge branch '0.1.x' into nested_nodes
Clean up.
Removed common node implementations.
Use common Image node.
Namespaces for testsuites.
Added whoami for debugging purposes.
Refactor exposed Article.Nodes.

The Node provided by Substance.Document must node be changed.
Instead the View and the Model are now served side-by-sidy.

Supposedely this breaks some things.
Clean up.