Updated personal keymaps, fixed Let's Split default keymap, updated JJ40 README (#2704)

* Add M6-A keymap

* Update XD60 keymap

* Update XD60 keymap readme

* Update JJ40 and Let's Split keymaps

* Add readme for M6-A

* Fix typo, update JJ40 README

* Update jj40 readme

* Cleanup jj40 keymap

* Revert Let's Split QWERTY layer to default before #2010

* Update numpad layers

* Fix: Let's Split keymap getting stuck mods due to having keycodes assigned on the Raise layer

* Keep ASCII art consistent with keymap

Implement magic 8-ball mode for big series switch (#2763)

ScrabblePad Support (#2760)

* Initial commit for donutcat's 15x15 monstrosity

* modify readmes to be more descriptive

* Add info.json to support QMK Configurator

* Update copyright and change REPLACE_WITH_YOUR_NAME to MechMerlin

* update naming convention for ScrabblePad

* remove .vscode directory as per Jack's comments

Add gh60 chaser Layout (#2757)

Add magic backspace to my layout (#2758)

* Add Haegin's keymap

* Potential improvements to the keyboard

* Add haegin minidox layout

* Add Haegin's keyboard to ergodox layouts

* Update Haegin's minidox keymap

* Add home, end, and page up and down

* Magic Backspace

Backspace still acts as control when you hold it down, but if you tap it
twice and hold it's a held backspace. Tapping it more than twice it
continues to act as backspace, but it deletes more characters with each
tap with the quantity deleted based on the fibonacci sequence.

* Switch to deleting words after 4 taps

When hitting backspace, after 4 taps this switches to deleting by word
because if you're hitting backspace that frantically you must need to
delete a lot of stuff. Holding backspace after 4 taps will delete words
in the same way that holding alt+backspace deletes words on a normal
keyboard.

Correct documentation for `PREVENT_STUCK_MODIFIERS`

added omnikey_blackheart keyboard support (#2688)

* added omnikey_blackheart keyboard support

* fixing omnikey_blackheart layout

* fixing omnikey_blackheart NKRO

Add Faux Clicking as subset of Audio feature (#2748)

* Add Faux Clicky to main Audio feature

* Make clicky settings user configurable

* Add additional documentation

* Don't play when music mode is enabled (hopefully)

Add support for Big Series 1-key PCB by Woodkeys.click

Meira updates for bluetooth and audio (#2731)

* Add audio output

* Update Miera to fix bluetooth issues, bootloader definition.

* Added keymap with audio example

* Cleanup Meira audio code

Added bending to MIDI (#2740)

This is done via MI_BENDD and MI_BENDU. At the moment the value is
hardcoded and cannot be adjusted (future commit?) and is the max for the
`midi_send_pitchbend` function (up or down).

`MI_BENDD` and `MI_BENDU` both require `#define MIDI_ADVANCED`

MIDI pitch bend was already implemented in `protocol/midi.c`, I merely
added the keycodes to trigger them. :) (thanks to Jack, two years ago
in commit fb4fe52c apparently)

Link to Atmel's flip is broken. (#2752)

The link to Atmel's flip is broken. It re-directs to http://www.microchip.com/. Please update!

I think this is the correct link. Please verify.

http://www.microchip.com/developmenttools/productdetails.aspx?partno=flip

Added amj40 keymap (#2754)

fixed shift area

keymap updates to try to make this thing usable

documentation tweaks

fix readme mismatch

clean up and finish docs

impstyle keymap added (#2753)

Update maartenwut's keymaps (tada68, atom47) and add GH60 layout (#2751)

Add a custom USB driver for ARM (#2750)

* Copy Chibios serial_usb_driver into the chibios/protocol

It's renamed to usb_driver to avoid name conflicts

* Make the usb driver compile

* Disable ChibiOS serial usb driver for all keyboards

* Change usb_main to use QMKUSBDriver

* Initialize the usb driver buffers

* Add support for fixed size queues

* Fix USB driver initialization

* Don't transfer an empty packet for fixed size streams

update Helix keymap 'five_rows' (#2635)

* add 'HELIX=' option for build

* add IOS_DEVICE_ENABLE for iPad

* shrink size to helix five_rows keymap.c

* shrink size. _ADJUST number change

* add KEYPAD layer

* modify keypad leyer

* display RGB mode on slave side OLED

* fix Colemak, Dvorak center DEL to BS

* change LEFT BS to LEFT SP and add AUX layer for try old map

* update update_base_layer()

* add right keypad and keypad func layer

* use MO() macro insted of LOWER,RAISE,ADJUST custom key-code

* remove LOWER,RAISE,ADJUST custom key-code
* use MO(_LOWER|_RAISE|_ADJUST)
* relayout ADJUST layer

* modify Function Layer. PGUP,PGDN swap HOME,END

* add Keypad aux layer for '00' send

* update README.md, README_jp.md

* fix README.md

* fix README.md, README_jp.md

Add Illustrator keymap layout for Ergo42 (#2658)

Updated Levinson and Fourier keymaps (#2685)

* 	new file:   keyboards/dilly/keymaps/delmo/config.h
	new file:   keyboards/dilly/keymaps/delmo/keymap.c
	new file:   keyboards/dilly/keymaps/delmo/rules.mk
	new file:   keyboards/fourier/config.h
	new file:   keyboards/fourier/fourier.c
	new file:   keyboards/fourier/fourier.h
	new file:   keyboards/fourier/i2c.c
	new file:   keyboards/fourier/i2c.h
	new file:   keyboards/fourier/keymaps/default/config.h
	new file:   keyboards/fourier/keymaps/default/keymap.c
	new file:   keyboards/fourier/keymaps/default/rules.mk
	new file:   keyboards/fourier/keymaps/valgrahf/config.h
	new file:   keyboards/fourier/keymaps/valgrahf/keymap.c
	new file:   keyboards/fourier/keymaps/valgrahf/rules.mk
	new file:   keyboards/fourier/matrix.c
	new file:   keyboards/fourier/readme.md
	new file:   keyboards/fourier/rev1/config.h
	new file:   keyboards/fourier/rev1/rev1.c
	new file:   keyboards/fourier/rev1/rev1.h
	new file:   keyboards/fourier/rev1/rules.mk
	new file:   keyboards/fourier/rules.mk
	new file:   keyboards/fourier/serial.c
	new file:   keyboards/fourier/serial.h
	new file:   keyboards/fourier/split_util.c
	new file:   keyboards/fourier/split_util.h

* 	new file:   keyboards/levinson/keymaps/valgrahf/config.h
	new file:   keyboards/levinson/keymaps/valgrahf/keymap.c
	new file:   keyboards/levinson/keymaps/valgrahf/rules.mk

* 	modified:   keyboards/levinson/keymaps/valgrahf/keymap.c

* 	deleted:    keyboards/dilly/keymaps/delmo/config.h
	deleted:    keyboards/dilly/keymaps/delmo/keymap.c
	deleted:    keyboards/dilly/keymaps/delmo/rules.mk

* 	modified:   keyboards/fourier/keymaps/valgrahf/keymap.c

* 	deleted:    keyboards/fourier/config.h
	deleted:    keyboards/fourier/fourier.c
	deleted:    keyboards/fourier/fourier.h
	deleted:    keyboards/fourier/i2c.c
	deleted:    keyboards/fourier/i2c.h
	deleted:    keyboards/fourier/keymaps/default/config.h
	deleted:    keyboards/fourier/keymaps/default/keymap.c
	deleted:    keyboards/fourier/keymaps/default/rules.mk
	deleted:    keyboards/fourier/keymaps/valgrahf/config.h
	deleted:    keyboards/fourier/keymaps/valgrahf/keymap.c
	deleted:    keyboards/fourier/keymaps/valgrahf/rules.mk
	deleted:    keyboards/fourier/matrix.c
	deleted:    keyboards/fourier/readme.md
	deleted:    keyboards/fourier/rev1/config.h
	deleted:    keyboards/fourier/rev1/rev1.c
	deleted:    keyboards/fourier/rev1/rev1.h
	deleted:    keyboards/fourier/rev1/rules.mk
	deleted:    keyboards/fourier/rules.mk
	deleted:    keyboards/fourier/serial.c
	deleted:    keyboards/fourier/serial.h
	deleted:    keyboards/fourier/split_util.c
	deleted:    keyboards/fourier/split_util.h

* 	deleted:    keyboards/fourier/config.h
	deleted:    keyboards/fourier/fourier.c
	deleted:    keyboards/fourier/fourier.h
	deleted:    keyboards/fourier/i2c.c
	deleted:    keyboards/fourier/i2c.h
	deleted:    keyboards/fourier/keymaps/default/config.h
	deleted:    keyboards/fourier/keymaps/default/keymap.c
	deleted:    keyboards/fourier/keymaps/default/rules.mk
	deleted:    keyboards/fourier/keymaps/valgrahf/config.h
	deleted:    keyboards/fourier/keymaps/valgrahf/keymap.c
	deleted:    keyboards/fourier/keymaps/valgrahf/rules.mk
	deleted:    keyboards/fourier/matrix.c
	deleted:    keyboards/fourier/readme.md
	deleted:    keyboards/fourier/rev1/config.h
	deleted:    keyboards/fourier/rev1/rev1.c
	deleted:    keyboards/fourier/rev1/rev1.h
	deleted:    keyboards/fourier/rev1/rules.mk
	deleted:    keyboards/fourier/rules.mk
	deleted:    keyboards/fourier/serial.c
	deleted:    keyboards/fourier/serial.h
	deleted:    keyboards/fourier/split_util.c
	deleted:    keyboards/fourier/split_util.h

	keyboards/fourier/

* 	new file:   keyboards/fourier/config.h
	new file:   keyboards/fourier/fourier.c
	new file:   keyboards/fourier/fourier.h
	new file:   keyboards/fourier/i2c.c
	new file:   keyboards/fourier/i2c.h
	new file:   keyboards/fourier/keymaps/default/config.h
	new file:   keyboards/fourier/keymaps/default/keymap.c
	new file:   keyboards/fourier/keymaps/default/rules.mk
	new file:   keyboards/fourier/keymaps/valgrahf/config.h
	new file:   keyboards/fourier/keymaps/valgrahf/keymap.c
	new file:   keyboards/fourier/keymaps/valgrahf/rules.mk
	new file:   keyboards/fourier/matrix.c
	new file:   keyboards/fourier/readme.md
	new file:   keyboards/fourier/rev1/config.h
	new file:   keyboards/fourier/rev1/rev1.c
	new file:   keyboards/fourier/rev1/rev1.h
	new file:   keyboards/fourier/rev1/rules.mk
	new file:   keyboards/fourier/rules.mk
	new file:   keyboards/fourier/serial.c
	new file:   keyboards/fourier/serial.h
	new file:   keyboards/fourier/split_util.c
	new file:   keyboards/fourier/split_util.h

* 	modified:   keyboards/fourier/keymaps/valgrahf/keymap.c

* 	modified:   keyboards/fourier/keymaps/valgrahf/keymap.c

 Add French Layout for XD75 (#2681)