When the content rendering stuff was moved to ve.ce.ContentBranchNode the onUpdate methods being used to update the DOM wrapper in ve.ce.HeadingNode was overlooked, so heading were not rendered on update anymore.
Change-Id: I994b8c43123c3cd02b9a550d5d7eac7d5052418e
Moved annotation rendering from ce.Textnode into the new
ce.ContentBranchNode class. This allows us to render annotations that
span across multiple nodes.
* Add ce.ContentBranchNode, inheriting ce.BranchNode
* Make ce.{Paragraph,Heading,Preformatted}Node inherit ce.ContentBranchNode
* Made ce.ContentBranchNode render its child nodes with anntations,
using .getAnnotatedHtml() on the child nodes
* Put a default implementation for .getAnnotatedHtml() in ce.LeafNode
* Override this in ce.TextNode to do escaping and whitespace handling
* Removed rendering code from ce.TextNode (this.$ is now unused there)
* Removed ce.TextNode.onUpdate() and ce.BranchNode.clean(), now unneeded
* Have ce.BranchNode propagate update events from children, so
ce.ContentBranchNode can rerender when its children change
* Update tests, add test case for escaping of &<>'"
Change-Id: I4600e984b287c6ff9267f4281d2f09bab9e1ad95
