[Stratos][GSoC-2015] Adding a configurable constant

[Pranavan Theivendiram]

Hi Devs,

I need to add a configurable constant for stratos. Is there any config file
where I can do $subject?

Thanks
*T. Pranavan*
*BSc Eng Undergraduate| Department of Computer Science & Engineering
,University of Moratuwa*
*Mobile| *0775136836