Release of libxml2-2.9.0

* libxml.spec.in: update
* doc/*: updated and regenerated
* libxml2.syms testapi.c: regenerated
diff --git a/doc/APIchunk26.html b/doc/APIchunk26.html
index 67a0a6b..50e814f 100644
--- a/doc/APIchunk26.html
+++ b/doc/APIchunk26.html
@@ -244,6 +244,7 @@
 <a href="html/libxml-relaxng.html#xmlRelaxNGValidatePushElement">xmlRelaxNGValidatePushElement</a><br />
 <a href="html/libxml-xmlerror.html#xmlSetGenericErrorFunc">xmlSetGenericErrorFunc</a><br />
 <a href="html/libxml-xmlerror.html#xmlSetStructuredErrorFunc">xmlSetStructuredErrorFunc</a><br />
+</dd><dt>validator</dt><dd><a href="html/libxml-xmlschemas.html#xmlSchemaValidityLocatorFunc">xmlSchemaValidityLocatorFunc</a><br />
 </dd><dt>validity</dt><dd><a href="html/libxml-parser.html#_xmlParserCtxt">_xmlParserCtxt</a><br />
 <a href="html/libxml-valid.html#_xmlValidCtxt">_xmlValidCtxt</a><br />
 <a href="html/libxml-xlink.html#xlinkIsLink">xlinkIsLink</a><br />