* Migrate `LAYOUTS` to data driven, 0-9
* Migrate `LAYOUTS` to data driven, A
* Migrate `LAYOUTS` to data driven, B
* Migrate `LAYOUTS` to data driven, C
* Migrate `LAYOUTS` to data driven, D
* Migrate `LAYOUTS` to data driven, E
* Migrate `LAYOUTS` to data driven, F
* Migrate `LAYOUTS` to data driven, G
* Migrate `LAYOUTS` to data driven, H
* Migrate `LAYOUTS` to data driven, handwired
* Migrate `LAYOUTS` to data driven, I
* Migrate `LAYOUTS` to data driven, J
* Migrate `LAYOUTS` to data driven, K
* Migrate `LAYOUTS` to data driven, L
* Migrate `LAYOUTS` to data driven, M
* Migrate `LAYOUTS` to data driven, N
* Migrate `LAYOUTS` to data driven, O
* Migrate `LAYOUTS` to data driven, P
* Migrate `LAYOUTS` to data driven, Q
* Migrate `LAYOUTS` to data driven, R
* Migrate `LAYOUTS` to data driven, S
* Migrate `LAYOUTS` to data driven, T
* Migrate `LAYOUTS` to data driven, U
* Migrate `LAYOUTS` to data driven, V
* Migrate `LAYOUTS` to data driven, W
* Migrate `LAYOUTS` to data driven, X
* Migrate `LAYOUTS` to data driven, Y
* Migrate `LAYOUTS` to data driven, Z
* adds :bootloader target
* update planck and preonic revisions
* remove references to .h files for planck
* update preonic keymap
* only add keyboard.h files that exist
* add production target
* hook things up with the new lufa variables
* update rules for planck/preonic
* back backlight key turn of status led when pressed
* add manufacturer/product strings to bootloader
