Source should show branch info

[frankcohen]

Atmel LWM source code in this repository shows the Apache Software Foundation (ASF) open source license. This code should also be labeled as a branch of the original. For example:

"This software is originally licensed under an Apache open source license from Atmel Corporation. The Pinoccio project (http://pinocc.io) made this software compatible with the Arduino environment, including minor changes to the source code headers and minor reorganization of the code files."

The above is just my recommendation.

-Frank

[matthijskooijman]

On one hand, I'm trying to minimize the changes to the LWM files and use them as-is whenever possible (and where I do needed to make changes, I'm planning to try and contribute those changes back upstream).

On the other hand, we'll probably continue to make small changes, so adding a comment to the top of every file makes sense. I can just add this to the update script so it should not complicate future updates. I'll look at this with the next upstream update.