* use XXX for KC_NO in rev1.h
* add matrix diagram to rev1.h
* remove reference to KBFirmware JSON Parser from rev1.h
* use XXX for KC_NO in rev2.h
* add matrix diagram to rev2.h
* add LAYOUT_60_ansi and LAYOUT_60_iso
* enable Community Layout support
* update info.json metadata
- specify keyboard revision in keyboard_name
- use GitHub username in maintainer field
* remove reference to KBFirmware JSON Parser from main rules.mk