Decide priority based on requested transfer mode.
Decide priority based on requested transfer mode.

svn path=/trunk/; revision=481

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