server: bump protocol version

Commit ad705bcb adds member to protocol structures, bump it.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
parse: add posval support to FIO_OPT_INT

Signed-off-by: Jens Axboe <axboe@kernel.dk>
options: make unit_base be posval[] based

We can kill the verifier and ensure we only get the
possible values we need.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
parse: for option with posval, dump allowed values on failure

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Convert unit_base to posval[]

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Merge branch 'master' into gfio

Conflicts:
	options.c
	parse.c
	server.h

Signed-off-by: Jens Axboe <axboe@kernel.dk>