GF home page: add new RGL languages to the list

Also a couple of fixes in release-next.t2t

index.html

@@ -365,7 +365,8 @@ support for an increasing number of languages, currently including
 <LI>Finnish
 <LI>French
 <LI>German
-<li>Greek
+<li>Greek ancient (partial)
+<li>Greek modern
 <li>Hebrew (fragments)
 <LI>Hindi
 <LI><A HREF="http://www.interlingua.com/">Interlingua</A>
@@ -377,12 +378,14 @@ support for an increasing number of languages, currently including
 <li>Mongolian
 <LI>Nepali
 <LI>Norwegian bokmål
+<LI>Norwegian nynorsk
 <LI>Persian
 <LI>Polish
 <li>Punjabi
 <LI>Romanian
 <LI>Russian
 <LI>Sindhi
+<LI>Slovene (partial)
 <LI>Spanish
 <li>Swahili (fragments)
 <LI>Swedish