task/ta-npp-002-16 -- factor out nparcel.Emailer() from
nparcel.LoaderDaemon()

nparcel/b2cconfig.py
* aggregator locations support lists

nparcel/daemonservice.py
* factor out the inbound directory list

nparcel/loaderdaemon.py
* patch the aggregate_file() method to to handle lists
* factored out nparcel.Emailer() object to nparcel.DaemonService()

nparcel/mapperdaemon.py
* attribute mods to provide layer of separation between
  nparcel.B2CConfig()