code: function NWTIOResponse (request) {
  	this.request = request;
  	try {
  		this.obj = JSON.parse(request.responseText);
  	} catch(e) {}
  }
docs: Wraps an XHR response object
  This allows us to parse on demand with o.obj()
  The toString method will also spit out the flat response
  @param object XHR request