Removed the concept of children from the escatree and escatype model
Added the ability to return a single linked object if it is known to be singular.
added the ability to retrieve the objects from the grouper.
topological nodes are now being constructed during the running of the program.
Added storage of referring node.
Updated refer to me option.  Added the getName attribute for the escatype.
Testing the ability of refer to me.
Modified function names so they are more explicit.
Added extention of set of Topological nodes.