Don't send out prerolled buffers.
Don't send out prerolled buffers.

Apparently this was causing the problems of receiving side unable to
handle (recognise and decode) the incoming stream.

svn path=/trunk/; revision=350

Pelagicore/Media-Manager-Rygel-patched,jku/rygel,GNOME/rygel,Pelagicore/Media-Manager-Rygel-patched,Tarnyko/rygel,luisbg/rygel,Pelagicore/Media-Manager-Rygel-patched,jku/rygel,GNOME/rygel,GNOME/rygel,Tarnyko/rygel