* Add .process() and its helpers from ve1
* Fix applyAnnotations()
** Use data[i] rather than data[j]
** Don't add empty annotation objects for no reason
** Remove empty annotation objects
*** I thought this wasn't needed, but it is needed for clean rollbacks
* Remove unused second parameter in applyAnnotations() call
Change-Id: Ia338f62d2eaf2a76f8ef653eead05bc44757a122
* Added support for asking if a given node type can have children or grandchildren and what types of nodes can be it's parent or child
* Removed canHaveChildren methods from leaf and branch nodes and converted use of them to depend on factory to read static rules from constructor lookup by type
Change-Id: I9769f95647066576416bacb791c4b68dd0285b35
Neither of these nodes have elements around them, so they must override the default behavior of ve.dm.Node
Change-Id: I19c02c210bfc04b6e2ee1a37b8890e84a236eee3
