complete, checking on other platforms is needed updated fix a bug raised

* runtest.c: complete, checking on other platforms is needed
* README: updated
* debugXML.c: fix a bug raised by bill on IRC
* relaxng.c: fix a leak in weird circumstances
* runsuite.c Makefile.am: standalone test tool agaisnt
  the regression suites, work in progress
Daniel
diff --git a/debugXML.c b/debugXML.c
index 20190ad..2335c4c 100644
--- a/debugXML.c
+++ b/debugXML.c
@@ -344,6 +344,7 @@
 
     if ((node->type != XML_ELEMENT_NODE) &&
 	(node->type != XML_ATTRIBUTE_NODE) &&
+	(node->type != XML_ELEMENT_DECL) &&
 	(node->type != XML_ATTRIBUTE_DECL) &&
 	(node->type != XML_DTD_NODE) &&
 	(node->type != XML_HTML_DOCUMENT_NODE) &&