Add RGB control, fix keymap to work with latest QMK.
Squashed commit of the following:
commit 3c5d95e4809d446fe5304aab9274d527182835e6
Author: dwrz <dwrz@dwrz.net>
Date:   Sat Apr 21 18:26:58 2018 +0000
    Make rules.mk for Let's Split piemod
commit 0cc5fc135220f0eb48509d2b027e4cad033d74a5
Author: dwrz <dwrz@dwrz.net>
Date:   Sat Apr 21 18:26:25 2018 +0000
    Add RGB control keys to function layer
commit d1b6bfa5f34123658534f99c97471b779b971ffb
Author: dwrz <dwrz@dwrz.net>
Date:   Sat Apr 21 18:26:03 2018 +0000
    Refactor MACROS to COMBOS
    MACROS was conflicting with existing code.
commit ce2f47b13fb3bfab9d63292ddba466879d300051
Author: dwrz <dwrz@dwrz.net>
Date:   Sat Apr 21 18:25:26 2018 +0000
    Add typing options to config.h
commit cb0aa62b81a17aaaee1f9843138495b9ca14b6d4
Author: dwrz <dwrz@dwrz.net>
Date:   Sat Apr 21 18:25:10 2018 +0000
    Add RGB options to config.h
		
	
PieMod
A keymap for users that need:
- 
P: Programming symbols. 
- 
I: i3wm. 
- 
E: Emacs. 
- 
M: Macros. 
- 
O: Ortholinear. 
- 
D: Dvorak. 
Still a work-in-progress. Suggestions welcome @ https://github.com/dwrz/piemod.
Keymap
TODO
- Add Emacs layer.
- Add Macro layer.
- Add system control keys (rotation, brightness).
- Switch " and ' quotes (or function to toggle default).
- Add capslock. .
