Merge branch 'master' into smt/planck

Merge branch 'master' into smt/planck

* master:
  Clarify license on abnt2 keymap (#1038)
  replace jackhumbert with qmk
  Add gitter image, start update to qmk org
  Remove COLEMAK from preonic_keycodes enum
  layer defines to enum
  Update readme for smt Preonic keymap
  Add smt keymap for Preonic
  updated all the other keymaps to support the new changes.
  fix: infinity60 keyboard was not using quantum features.
  Compare Makefile with itself instead of using `--help`