Fix UID agreement with cloudpipe/keymaster.
Fix UID agreement with cloudpipe/keymaster.

genkeys assumes that you are running as UID 1000 to agree with
keymaster.  If your local user behind the docker client is not UID 1000,
bindmounts will then fail.  You could also solve this by making a
secondary container/data volume instead of bindmounting, but that way
may not be that easy/useful for development, so here's a workaround
using sudo/chown to do that for you.

Also, using /dev/random instead of /dev/urandom for PW gen creates
unnecessary delays. Ref: http://www.2uo.de/myths-about-urandom/

cloudpipe/cloudpipe,cloudpipe/cloudpipe,cloudpipe/cloudpipe