Add command line interface. Refactor mailserver.js. Pull web server into seperate file.

Using commander.js to accept options for ports, etc. mailserver.js
functions now follow node callback pattern.  Added simple log module to
conditionally print info the the console during verbose mode.
Merge branch 'master' into Develop
Add more logging.
Update main view info based on config.
Redesigned Web GUI

Added font-awesome. Removal of twitter bootstrap. New dev task using
nodemon to watch for changes.
Bump to version 0.5.0
Merge branch 'Develop'