Release of libxml2-2.9.0

* libxml.spec.in: update
* doc/*: updated and regenerated
* libxml2.syms testapi.c: regenerated
diff --git a/doc/APIchunk21.html b/doc/APIchunk21.html
index c055be7..9c03080 100644
--- a/doc/APIchunk21.html
+++ b/doc/APIchunk21.html
@@ -243,6 +243,10 @@
 <a href="html/libxml-parser.html#xmlCtxtUseOptions">xmlCtxtUseOptions</a><br />
 <a href="html/libxml-tree.html#xmlDOMWrapRemoveNode">xmlDOMWrapRemoveNode</a><br />
 <a href="html/libxml-xmlmodule.html#xmlModuleOpen">xmlModuleOpen</a><br />
+<a href="html/libxml-xmlsave.html#xmlSaveToBuffer">xmlSaveToBuffer</a><br />
+<a href="html/libxml-xmlsave.html#xmlSaveToFd">xmlSaveToFd</a><br />
+<a href="html/libxml-xmlsave.html#xmlSaveToFilename">xmlSaveToFilename</a><br />
+<a href="html/libxml-xmlsave.html#xmlSaveToIO">xmlSaveToIO</a><br />
 <a href="html/libxml-xmlschemas.html#xmlSchemaSetValidOptions">xmlSchemaSetValidOptions</a><br />
 <a href="html/libxml-xmlschemas.html#xmlSchemaValidCtxtGetOptions">xmlSchemaValidCtxtGetOptions</a><br />
 <a href="html/libxml-xmlschemas.html#xmlSchemaValidateFile">xmlSchemaValidateFile</a><br />
@@ -320,6 +324,7 @@
 <a href="html/libxml-threads.html#xmlLockLibrary">xmlLockLibrary</a><br />
 <a href="html/libxml-parser.html#xmlParseEntity">xmlParseEntity</a><br />
 <a href="html/libxml-parser.html#xmlSAXParseEntity">xmlSAXParseEntity</a><br />
+<a href="html/libxml-xmlschemas.html#xmlSchemaValidityLocatorFunc">xmlSchemaValidityLocatorFunc</a><br />
 <a href="html/libxml-xmlerror.html#xmlSetGenericErrorFunc">xmlSetGenericErrorFunc</a><br />
 <a href="html/libxml-xmlerror.html#xmlSetStructuredErrorFunc">xmlSetStructuredErrorFunc</a><br />
 <a href="html/libxml-xmlreader.html#xmlTextReaderNormalization">xmlTextReaderNormalization</a><br />
@@ -341,6 +346,7 @@
 <a href="html/libxml-SAX.html#resolveEntity">resolveEntity</a><br />
 <a href="html/libxml-parser.html#resolveEntitySAXFunc">resolveEntitySAXFunc</a><br />
 <a href="html/libxml-catalog.html#xmlCatalogAdd">xmlCatalogAdd</a><br />
+<a href="html/libxml-tree.html#xmlGetLineNo">xmlGetLineNo</a><br />
 <a href="html/libxml-SAX2.html#xmlSAX2ResolveEntity">xmlSAX2ResolveEntity</a><br />
 </dd><dt>overriding</dt><dd><a href="html/libxml-parserInternals.html#XML_MAX_NAME_LENGTH">XML_MAX_NAME_LENGTH</a><br />
 </dd><dt>overwrite</dt><dd><a href="html/libxml-catalog.html#xmlACatalogAdd">xmlACatalogAdd</a><br />