Release of libxml2-2.8.0

- Makefile.am: don't package .git
- configure.in : update to new release
- doc/xml.html: added the new release
- doc/* testapi.c: regenerated
diff --git a/doc/APIchunk21.html b/doc/APIchunk21.html
index 3a1124e..2f98a8c 100644
--- a/doc/APIchunk21.html
+++ b/doc/APIchunk21.html
@@ -135,6 +135,7 @@
 <a href="html/libxml-entities.html#xmlEncodeEntities">xmlEncodeEntities</a><br />
 <a href="html/libxml-parser.html#xmlInitParser">xmlInitParser</a><br />
 <a href="html/libxml-catalog.html#xmlInitializeCatalog">xmlInitializeCatalog</a><br />
+<a href="html/libxml-dict.html#xmlInitializeDict">xmlInitializeDict</a><br />
 <a href="html/libxml-catalog.html#xmlLoadCatalog">xmlLoadCatalog</a><br />
 <a href="html/libxml-catalog.html#xmlLoadCatalogs">xmlLoadCatalogs</a><br />
 <a href="html/libxml-parserInternals.html#xmlParseAttributeType">xmlParseAttributeType</a><br />
@@ -247,6 +248,7 @@
 <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 />
+<a href="html/libxml-xmlreader.html#xmlTextReaderRelaxNGValidateCtxt">xmlTextReaderRelaxNGValidateCtxt</a><br />
 <a href="html/libxml-xmlreader.html#xmlTextReaderSchemaValidateCtxt">xmlTextReaderSchemaValidateCtxt</a><br />
 <a href="html/libxml-xmlreader.html#xmlTextReaderSetup">xmlTextReaderSetup</a><br />
 <a href="html/libxml-xpath.html#xmlXPathContextSetCache">xmlXPathContextSetCache</a><br />