(2nd) Basic computable JSON: Date, Double, Long - Assumes niem/xml; .Net console app updates

Try pull request again, prior was only pulling from my 4.5 branch, not my master branch - looks like this one should be able to merge :)

There is also some code for parsing out namespaces and doing our own JSON with namespaces to XML conversion.
The namespace feature is now slated for 5.0 - so there is a stub function for this feature but it's just calling the prior method of json to XML ( xotree.writeXML(json) ).

Need to improve this so it works for JSON posted, and doesn't assume niem/xml.
Need to add more data types, like Boolean and other xml primitive types