Update .pot file. Add eo.po. Add serial for libvorbis 1.2.1 in ogginfo.

svn path=/trunk/vorbis-tools/; revision=15309

ogginfo/ogginfo2.c

@@ -56,6 +56,7 @@ struct vorbis_release {
 	{"Xiph.Org libVorbis I 20050304", "1.1.1"},
 	{"Xiph.Org libVorbis I 20050304", "1.1.2"},
 	{"Xiph.Org libVorbis I 20070622", "1.2.0"},
+	{"Xiph.Org libVorbis I 20080501", "1.2.1"},
         {NULL, NULL},
     };