added SoupSoapParameter structure, to "hide" the usage of xmlNode's.

added SoupSoapParameter structure, to "hide" the usage of xmlNode's.

2003-11-26  Rodrigo Moya <rodrigo@ximian.com>

	* libsoup/soup-soap-response.[ch]: added SoupSoapParameter
	structure, to "hide" the usage of xmlNode's.
	(soup_soap_parameter_get_name): functions to manage SOAP
	response parameters.
	(soup_soap_response_get_first_parameter,
	soup_soap_response_get_first_parameter_by_name,
	soup_soap_response_get_next_parameter,
	soup_soap_response_get_next_parameter_by_name):
	new functions for an easy access to the response's parameters.
	(soup_soap_response_from_string): removed warnings.