Remove the trailing ^M from the files
This is a revamp of CSD fall 2012 microgrid team's porting of contiki.

In this revamp, the bang-bang control function is reimplemented entirely.
The goal of this reimplementation is to try to use Jorge's original code
"as is" with minimum modification. It also includes the missing parts
that were not ported by microgrid team, which are:
        - the glitch filter
        - the shoot-through minimizing technique
In the revamp of the control function, the code was largely modified
having different structure and functions. This includes removing
of the functions used in the CoAP implementation of the CSD fall 2012
microgrid team.

Thus, the CoAP implementation has to be modified here to use the
new functions accordingly.