zoom and undo keys for ab's planck keymap (#446)

Merge pull request #447 from abperiasamy/ergo-browser-zoom

zoom and undo keys for ab's beginners ergodox-ez keymap

zoom and undo keys

Preonic keymap update

updates preonic default layout

updates planck macros to keycodes, prototype fn_actions

Swap up and down on ab's layout to match default (#441)

Merge pull request #440 from abperiasamy/ergo-ab-swap-up-down

Swap up and down keys to match default layout

Merge pull request #438 from tkuichooseyou/master

Added tkuichooseyou keymap; for vim and macOS users

Swap up and down to match default layout

updates ez's matrix to spec

Backlight abstraction and other changes (#439)

* redoes matrix pins, abstracts backlight code for B5,6,7

* slimming down keyboard stuff, backlight breathing implemented

* don't call backlight init when no pin

* cleans up user/kb/quantum calls, keyboard files

* fix pvc atomic

* replaces CHANNEL with correct var in breathing

* removes .hexs, updates readmes, updates template

* cleans-up clueboards, readmes to lowercase

* updates readme

Add OS specific layers that can be switched with macros (#436)

Added tkuichooseyou keymap; for vim and OSX users

AB's practical planck keymap (#435)

Updates overall readme

Adds a Readme for the keyboards subdirectory

well that didn't work

adds author block to readme

Merge pull request #433 from algernon/ergodox-ez/algernon

ergodox_ez: Update the algernon keymap to v1.2