preparing 2.4.6 release updated and rebuilt the docs fixed a number of

* configure.in: preparing 2.4.6 release
* doc/xml.html doc/html/*: updated and rebuilt the docs
* include/libxml/*.h *.c: fixed a number of teh/the widht/width typos
Daniel
diff --git a/SAX.c b/SAX.c
index 59158a2..be5c760 100644
--- a/SAX.c
+++ b/SAX.c
@@ -1317,10 +1317,10 @@
 #ifndef XML_USE_BUFFER_CONTENT
 	    /*
 	     * The whole point of maintaining nodelen and nodemem,
-	     * xmlTextConcat is too costly, i.e. compute lenght,
+	     * xmlTextConcat is too costly, i.e. compute length,
 	     * reallocate a new buffer, move data, append ch. Here
 	     * We try to minimaze realloc() uses and avoid copying
-	     * and recomputing lenght over and over.
+	     * and recomputing length over and over.
 	     */
 	    if (ctxt->nodelen + len >= ctxt->nodemem) {
 		xmlChar *newbuf;