miniupnpc: Update to version 2.2.3

Library code and public headers are now properly separated, we can fix include paths
to remove the redundant subfolder.

thirdparty/miniupnpc/src/minixml.h

@@ -0,0 +1,37 @@
+/* $Id: minixml.h,v 1.6 2006/11/30 11:47:21 nanard Exp $ */
+/* minimal xml parser
+ *
+ * Project : miniupnp
+ * Website : http://miniupnp.free.fr/
+ * Author : Thomas Bernard
+ * Copyright (c) 2005 Thomas Bernard
+ * This software is subject to the conditions detailed in the
+ * LICENCE file provided in this distribution.
+ * */
+#ifndef MINIXML_H_INCLUDED
+#define MINIXML_H_INCLUDED
+#define IS_WHITE_SPACE(c) ((c)==' ' || (c)=='\t' || (c)=='\r' || (c)=='\n')
+
+/* if a callback function pointer is set to NULL,
+ * the function is not called */
+struct xmlparser {
+	const char *xmlstart;
+	const char *xmlend;
+	const char *xml;	/* pointer to current character */
+	int xmlsize;
+	void * data;
+	void (*starteltfunc) (void *, const char *, int);
+	void (*endeltfunc) (void *, const char *, int);
+	void (*datafunc) (void *, const char *, int);
+	void (*attfunc) (void *, const char *, int, const char *, int);
+};
+
+/* parsexml()
+ * the xmlparser structure must be initialized before the call
+ * the following structure members have to be initialized :
+ * xmlstart, xmlsize, data, *func
+ * xml is for internal usage, xmlend is computed automatically */
+void parsexml(struct xmlparser *);
+
+#endif
+