PREVENT_STUCK_MODIFIERS
* Remove chording as it is not documented, not used, and needs work. * Make Leader Key an optional feature. * Switch from `PREVENT_STUCK_MODIFIERS` to `STRICT_LAYER_RELEASE` * Remove `#define PREVENT_STUCK_MODIFIERS` from keymaps.
* 10 more indicator LEDs * Piezo buzzer * Uses HC138 decoder to free up 5 pins * Trackpoint buttons are now part of matrix