* refactor keyboards using ST_STM32F072B_DISCOVERY to use 'MCU = STM32F072'
* refactor keyboards using GENERIC_STM32_F042X6 to use 'MCU = STM32F042'
* refactor keyboards using GENERIC_STM32_F103 to use 'MCU = STM32F103'
* Initial ARM bitbang ws2812 driver
* Unify chibios platform to run rgblight_task
* Remove 'avr only' comments from ws2812 docs
* Remove 'avr only' comments from ws2812 docs
* Unify chibios platform to run rgblight_task - review comments
* Remove debug flags from keymap
* Add comments from review
* Add defines for STM32L0XX
* Attempt to get arm ws2812 working on multiple gcc versions