#1408 Used winston logger to log. Child processes send message to the pa...

Used winston logger to log. Child processes send message to the parent using "logger" class. The parent logs the message using winston.

Logging configuration is picked from configuration file.

Additional logging can be done using this enhancement as we keep modifying the code.
http://stackoverflow.com/a/729725/2066866

I think it's just a good habit to get into. Also I don't like the little red no newline symbol that comes up on github :)

But it's not a huge deal.