Release of libxml2-2.7.4

* configure.in: new version
* libxml.spec.in: cleanup
* xmlregexp.c: fix a comment
* doc/apibuild.py: update
* doc/*: regenerate everything
diff --git a/doc/APIchunk17.html b/doc/APIchunk17.html
index 09b98a1..5424f37 100644
--- a/doc/APIchunk17.html
+++ b/doc/APIchunk17.html
@@ -211,7 +211,7 @@
 <a href="html/libxml-xpathInternals.html#xmlXPathNodeSetRemove">xmlXPathNodeSetRemove</a><br />
 <a href="html/libxml-xpointer.html#xmlXPtrLocationSetRemove">xmlXPtrLocationSetRemove</a><br />
 <a href="html/libxml-xpointer.html#xmlXPtrNewRange">xmlXPtrNewRange</a><br />
-</dd><dt>indicate</dt><dd><a href="html/libxml-xmlversion.html#ATTRIBUTE_ALLOC_SIZE">ATTRIBUTE_ALLOC_SIZE</a><br />
+</dd><dt>indicate</dt><dd><a href="html/libxml-xmlversion.html#LIBXML_ATTR_ALLOC_SIZE">LIBXML_ATTR_ALLOC_SIZE</a><br />
 <a href="html/libxml-xmlversion.html#LIBXML_ATTR_FORMAT">LIBXML_ATTR_FORMAT</a><br />
 <a href="html/libxml-parserInternals.html#xmlParseExternalID">xmlParseExternalID</a><br />
 <a href="html/libxml-parser.html#xmlParserInputGrow">xmlParserInputGrow</a><br />
@@ -439,7 +439,8 @@
 </dd><dt>insufficient</dt><dd><a href="html/libxml-uri.html#xmlCanonicPath">xmlCanonicPath</a><br />
 <a href="html/libxml-uri.html#xmlPathToURI">xmlPathToURI</a><br />
 </dd><dt>intact</dt><dd><a href="html/libxml-uri.html#xmlParseURIRaw">xmlParseURIRaw</a><br />
-</dd><dt>integer</dt><dd><a href="html/libxml-xmlstring.html#xmlStrcasecmp">xmlStrcasecmp</a><br />
+</dd><dt>integer</dt><dd><a href="html/libxml-threads.html#xmlGetThreadId">xmlGetThreadId</a><br />
+<a href="html/libxml-xmlstring.html#xmlStrcasecmp">xmlStrcasecmp</a><br />
 <a href="html/libxml-xmlstring.html#xmlStrcmp">xmlStrcmp</a><br />
 <a href="html/libxml-xmlstring.html#xmlStrncasecmp">xmlStrncasecmp</a><br />
 <a href="html/libxml-xmlstring.html#xmlStrncmp">xmlStrncmp</a><br />