fixing a function comment switching to the XML/XSLT doc generation closing

* xmlschemas.c doc/libxml2-api.xml: fixing a function comment
* doc/Makefile.am doc/apibuild.py doc/gnome-xml.sgml: switching
  to the XML/XSLT doc generation closing #111799
* doc/html/*: complete update of the HTML results
Daniel
diff --git a/doc/apibuild.py b/doc/apibuild.py
index b80809b..4e56f53 100755
--- a/doc/apibuild.py
+++ b/doc/apibuild.py
@@ -1464,8 +1464,7 @@
     if glob.glob("../parser.c") != [] :
         print "Rebuilding API description for libxml2"
 	builder = docBuilder("libxml2", ["..", "../include/libxml"],
-	                     ["xmlwin32version.h", "tst.c",
-			      "schemasInternals.h", "xmlschemas" ])
+	                     ["xmlwin32version.h", "tst.c"])
     elif glob.glob("../libxslt/transform.c") != [] :
         print "Rebuilding API description for libxslt"
 	builder = docBuilder("libxslt", ["../libxslt"],