No Input/output port order anymore in writeTreeNodesModelXML ?

[RhysMcK]

Hi,

I notice in this commit d5ea17b5184feacac3f3763de0730713384bafc9 you removed the input/output port ordering logic. As a result, when using writeTreeNodesModelXML() to auto-generate the <TreeNodesModel> tags for Groot2, the ports are in some ?random? order. This is than obviously reflected in Groot2 and not ideal. What was the rational behind removing this?

Thanks very much!