libkbfs/mdserver: compile against new MD version protocol
libkbfs/mdserver: compile against new MD version protocol

Issue: KBFS-15

keybase/kbfs,keybase/kbfs,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/kbfs,keybase/client,keybase/client,keybase/kbfs