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/uri.c b/uri.c
index a2e427a..d386e1d 100644
--- a/uri.c
+++ b/uri.c
@@ -922,7 +922,7 @@
 /**
  * xmlURIUnescapeString:
  * @str:  the string to unescape
- * @len:   the lenght in bytes to unescape (or <= 0 to indicate full string)
+ * @len:   the length in bytes to unescape (or <= 0 to indicate full string)
  * @target:  optionnal destination buffer
  *
  * Unescaping routine, does not do validity checks !