Implemented the functionality for remote execution
Implemented the functionality for remote execution

Added two command line options :
  -m, --command to pass the command you want to run
  --host, to pass the clientid of the host that should
          run the command. If omitted the command is ran in
          all the hosts

tcmitchell/geni-tools,plantigrade/geni-tools,tcmitchell/geni-tools,plantigrade/geni-tools,ahelsing/geni-tools,ahelsing/geni-tools