task/de07-ta89 -- Refactor the e-mail comms facility to be "prod"
aware (SMTP Interface)

nparcel/restemailer.py
nparcel/emailer.py
* factor out create_comms() and get_subject_line() from
  nparcel/restemailer.py to nparcel/emailer.py

nparcel/daemonservice.py
* new method send_table() that sends an email alert via the
  SMTP gateway based on tabular data

nparcel/loaderdaemon.py
nparcel/exporterdaemon.py
nparcel/filterdaemon.py
* refactor the alert email comms call to use the new
  nparcel.daemonservice.send_table() method

nparcel/b2cconfig/exporterb2cconfig.py
* factor out the Exporter config items into their separate module