Support list of hosts #70
Description
It would be nice if the tool supported a list of mongos host/ports. Right now we take in a single host/port and in a sharded system this means relying on 1 x mongos host/port to be up.
Perhaps we can allow the -H/--host flag to take in either a single host or a CSV list of host:port,host:port or similar and on the yaml-config side we would take in a yaml array of hosts.
We could also ditch using the mongos and use the config servers.