Use driver_opts instead of volume name

[niieani]

The driver doesn't work with docker-compose, because there is no way to create a named volume with a # in it. Instead of this hacky workaround it would be best to use the native options, e.g. like this:

docker volume create -d sshfs -o host=1.2.3.4 -o port=22 -o mountpoint=/data --name=awesome-volume

As an example, see: https://github.com/CWSpear/local-persist

[vieux]

@niieani I updated the plugins recently, thanks.