Replaced hard codded values with constants already defined in message.py
Replaced hard codded values with constants already defined in message.py

fernandalavalle/mlab-ns,m-lab/mlab-ns,m-lab/mlab-ns,m-lab/mlab-ns,fernandalavalle/mlab-ns,m-lab/mlab-ns,fernandalavalle/mlab-ns,fernandalavalle/mlab-ns