added a helper that will autofill the service name
added a helper that will autofill the service name

Get the service name from the package.json file if it exists in the
current working directory.

  - Added a helper that fetch the package.json and return `.name`
  - Use package.json.name in the add, remove, update, start, info,
    stop, restart, sync, deploy, and tarball commands

I did not touch the ps, log, and list commands as there are situations
where we want to run these without a given service.

mafintosh/hms