Operational again

Hi Matthias,

Just made this thing operational for the rocket launcher I got for christmas. This one has an LED and the command structure was slightly different.

This version works on the following more recent OS version:

    Linux 3.16.0-29-generic #39-Ubuntu SMP Mon Dec 15 22:27:29 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

Cheers,

Anne