Set nominal/min/max bitrate properly for managed modes in vorbis_info, so that these values are set correctly in the primary header.
Set nominal/min/max bitrate properly for managed modes in vorbis_info, so
that these values are set correctly in the primary header.

svn path=/trunk/vorbis/; revision=3079

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