actually call LOG.init and LOG.recover in the haskell driver
actually call LOG.init and LOG.recover in the haskell driver

hstest now recovers the log if there's an existing disk image in place

things seem to just work..

mit-pdos/fscq-impl,mit-pdos/fscq-impl,mit-pdos/fscq-impl,mit-pdos/fscq-impl,mit-pdos/fscq-impl