generated an alphabetic index based on comments content rebuilt the web

* doc/APIchunk*.html doc/parsedecl.py doc/api.xsl: generated
  an alphabetic index based on comments content
* doc/*: rebuilt the web site with the new references
Daniel
diff --git a/doc/Makefile.am b/doc/Makefile.am
index a572fb7..4c887ef 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -17,7 +17,7 @@
     interface.html intro.html library.html namespaces.html news.html \
     tree.html xmldtd.html XMLinfo.html XSLT.html
 APIPAGES=APIconstructors.html APIfiles.html APIfunctions.html \
-    APIsymbols.html
+    APIsymbols.html APIchunk0.html
 
 man_MANS = xmllint.1 xmlcatalog.1