Update reference to vorbis spec, to partially address lars.eggert@nokia.com comment
Update reference to vorbis spec, to partially address lars.eggert@nokia.com comment

svn path=/trunk/vorbis/; revision=14170

eidy/vorbis,ShiftMediaProject/vorbis,mwgoldsmith/vorbis,youfearm3/vorbis,felipebetancur/vorbis,emscripten-ports/Vorbis,erikd/vorbis,youfearm3/vorbis,eidy/vorbis,felipebetancur/vorbis,mwgoldsmith/vorbis,nicolaichuk/vorbis,ksophocleous/vorbis,ksophocleous/vorbis,youfearm3/vorbis,felipebetancur/vorbis,youfearm3/vorbis,ShiftMediaProject/vorbis,ksophocleous/vorbis,mwgoldsmith/vorbis,ShiftMediaProject/vorbis,emscripten-ports/Vorbis,ShiftMediaProject/vorbis,eidy/vorbis,erikd/vorbis,erikd/vorbis,felipebetancur/vorbis,mwgoldsmith/vorbis,ShiftMediaProject/vorbis,ksophocleous/vorbis,nicolaichuk/vorbis,emscripten-ports/Vorbis,emscripten-ports/Vorbis,nicolaichuk/vorbis,eidy/vorbis,erikd/vorbis,ShiftMediaProject/vorbis,nicolaichuk/vorbis