Merge branch 'master' of https://github.com/jackhumbert/qmk_firmware

Merge pull request #771 from UnderSampled/master

Impossible Layout

Merge pull request #769 from pvinis/fix/tap-dance-each-tap-restore

[tap dance] restore each_tap functionality

Merge pull request #768 from Dbroqua/master

Updated backlight levels for KC60

Merge pull request #767 from IBNobody/lets_split_reduce_hex_size

Lets split reduce hex size

Fixed Impossible Layout readme tables (again)

Merge branch 'master' of https://github.com/jackhumbert/qmk_firmware

Corrected Impossible Layout readme tables

Filled Impossible Layout documentation

add user_data field

formatting

restore each_tap callback

- Updated backlight levels for KC60

Created I2C and Serial keymaps for unit testing

Having a dedicated I2C keymap and a dedicated serial keymap will allow
the testing suite to check both conditions.

Made Serial and I2C not include the Other

This saves 192 bytes

Merge remote-tracking branch 'refs/remotes/jackhumbert/master'

Merge pull request #765 from jakllsch/more-shifted-dvorak-keycodes

Add more shifted Dvorak key code definitions

Merge pull request #763 from Dbroqua/master

Updated dbroqua layout for KC60

Fixed Qwerty Fn layer to match documented design

Merge remote-tracking branch 'refs/remotes/jackhumbert/master'