More work toward 2.2.5, integrated a number of patches

- configure.in Makefile.am win32config.h.in: trying to cleanup
  make distcheck .... huh ...
- include/Makefile.am include/win32config.h: new directory
  for includes
- win32/Makefile.mingw win32/README.MSDev win32/libxml2/libxml2.dsp
  updated teh makefiles and instructions for WIN32
- xpath.c: small fixes
- test/XPath/ results/XPath: updated the testcases and results
- HTMLparser.c nanohttp.c testXPath.c: incorporated provided or
  suggested patches
- valid.c: fixed an ID bug
Daniel

HTMLparser.c

@@ -14,7 +14,6 @@
 
 #include <libxml/xmlversion.h>
 #ifdef LIBXML_HTML_ENABLED
-
 #include <stdio.h>
 #include <string.h>
 #ifdef HAVE_CTYPE_H
@@ -1786,7 +1785,7 @@ htmlParseHTMLName(htmlParserCtxtPtr ctxt) {
 
     while ((i < HTML_PARSER_BUFFER_SIZE) &&
            ((IS_LETTER(CUR)) || (IS_DIGIT(CUR)) ||
-	   (CUR == ':') || (CUR == '_'))) {
+	   (CUR == ':') || (CUR == '-') || (CUR == '_'))) {
 	if ((CUR >= 'A') && (CUR <= 'Z')) loc[i] = CUR + 0x20;
         else loc[i] = CUR;
 	i++;