paalied patch from Julio M. Merino Vidal fixing bug #134751 to fix

* configure.in doc/Makefile.am include/libxml/Makefile.am:
  paalied patch from Julio M. Merino Vidal fixing bug #134751
  to fix --with-html-dir option.
* doc/*: rebuilt fully the docs
* doc/html/libxml-xmlsave.html: new file from new header.
Daniel
diff --git a/doc/APIchunk10.html b/doc/APIchunk10.html
index 6afa797..6def6a8 100644
--- a/doc/APIchunk10.html
+++ b/doc/APIchunk10.html
@@ -334,6 +334,7 @@
 <a href="html/libxml-parser.html#xmlReadIO">xmlReadIO</a><br />
 <a href="html/libxml-xmlreader.html#xmlReaderForIO">xmlReaderForIO</a><br />
 <a href="html/libxml-xmlreader.html#xmlReaderNewIO">xmlReaderNewIO</a><br />
+<a href="html/libxml-xmlsave.html#xmlSaveToIO">xmlSaveToIO</a><br />
 <a href="html/libxml-xmlreader.html#xmlTextReaderClose">xmlTextReaderClose</a><br />
 </dd><dt>closed</dt><dd><a href="html/libxml-parser.html#xmlCtxtReadFd">xmlCtxtReadFd</a><br />
 <a href="html/libxml-parser.html#xmlReadFd">xmlReadFd</a><br />