def printRequest( url, headers, xml )
      puts
      puts "Request: -------------------------------------------"
      p url if url
      p headers if headers
      p xml if xml
      self
   end
def printRequest( url, headers, xml )
      puts
      puts "Request: -------------------------------------------"
      p url if url
      p headers if headers
      p xml if xml
      self
   end
Called by sendRequest if @printRequestsAndResponses is true