add 1.1.1 entry for new Ogg mapping

doc/html/changelog.html

@@ -92,6 +92,7 @@
 		<LI>
 			General:
 			<UL>
+				<LI>First official FLAC-&gt;Ogg bitstream mapping standardized (see new <A HREF="ogg_mapping.html">FLAC-to-Ogg mapping specification</A>)</LI>
 				<LI>Ogg FLAC seeking now works</LI>
 				<LI>New PPC optimizations almost double the decoding speed on OS X</LI>
 				<LI>A native OS X release thanks to updated Project Builder and autotools files</LI>