* Added Contra keyboard support
The configuration came from a source distribution of the firmware on the
Contra's official website.
I have also included a simple MIDI keymap. (And it works!)
* Changes to Contra config and README
* Readme has been changed as requested by jackhumbert
* Config has been changed to add the Cartel and Contra names to
the USB configuration.
* Add existing file
* Add new keyboard layout - initial commit
* Revised readme.md
* Clarified readme.md, reorganized keymap.c, and added license text.
* Fixing last incomplete commit
* Just a little code cleanup to make things more readable.