* 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
These are needed to make sure the base classes behave correctly, the ones in sub classes are needed to make sure the prototypes of the base class are correctly inherited
Change-Id: I334cc3ce1c4c0ce2eed23c79e8877332a953f7c3
In this commit several methods (child node add/remove and parent/root modification) were also moved to ve.dm.BranchNode ve.dm.Node respectively. ve.Node and ve.BranchNode are immutable. ve.dm.Node and ve.dm.BranchNode are mutable. Other subclasses of ve.Node and ve.BranchNode should implement functionality to mimic changes made to a data model.
Change-Id: Ia9ff78764f8f50f99fc8f9f9593657c0a0bf287e
