Removed prescaler define from avr i2c, as it was impossible to use (#6617)

[Keyboard] Add keyboard Reviung39 (#6620)

* add keyboards/reviung39

* fix reviung39/keymaps/default/

* [Keymap] add keymap default_s for reviung39 type-s

* [keymap] fix default and default_s

* [keymap] remove backup directory(keyboards/reviung39/backup/)

* [keymap] Update readme.md

* [keyboards] fix keyboards/reviung39/reviung39.h, rules.mk, /keymaps/default/keymap.c

* [keymap] fix /default_s/keymap.c

* Update readme.md

* Update readme.md

* fix rules.mk

* [keymaps] fix default/keymap.c

[Keyboard] Assorted personal keymap/layout updates (#6621)

* Switch Quefrency back to I2C (#6161 fixes the lag)

* Update Quefrency keymap

* Add reset and EEPROM reset keybindings so these tasks can be performed
separately, rather than relying on Bootmagic Lite, which performs both
tasks at the same time.

* Move Caps Lock from Fn+Ctrl to Fn+Tab since Fn+Ctrl is sometimes used
as part of a more complex keybinding, whereas Fn+Tab is always safe.

* Update KBD67 keymap

* Add reset and EEPROM reset keybindings so these tasks can be performed
separately, rather than relying on Bootmagic Lite, which performs both
tasks at the same time.

* Move Caps Lock from Fn+Ctrl to Fn+Tab since Fn+Ctrl is sometimes used
as part of a more complex keybinding, whereas Fn+Tab is always safe.

* Move Menu to a layer tap on the Fn key since that's a more natural
location.

* Update 60% Tsangan HHKB layout

* Move Caps Lock from Fn+Ctrl to Fn+Tab since Fn+Ctrl is sometimes used
as part of a more complex keybinding, whereas Fn+Tab is always safe.

* Update 60% ANSI split backspace/right-shift layout

* Add reset and EEPROM reset keybindings so these tasks can be performed
separately, rather than relying on Bootmagic Lite, which performs both
tasks at the same time.

* Move Caps Lock from Fn+Ctrl to Fn+Tab since Fn+Ctrl is sometimes used
as part of a more complex keybinding, whereas Fn+Tab is always safe.

[Keyboard] Support flashing DZ60 with :flash command (#6624)

[Keyboard] Support flashing Instant60 from command line (#6625)

[Keyboard] Add option to use 4x12 layout for Nyquist (#6633)

* Add option to use 4x12 layout for Nyquist

* Add 4x12 Nyquist support to configurator

* Add height to 4x12 configurator layout

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>

* Remove QWERTY keycode

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>

[Keymap] Personal ISO-ish keymap for HHKB (#6632)

* Personal ISO-ish keymap for HHKB

* Fix keymap image

[Keyboard] Add Caravan keyboard (#6630)

* added caravan keyboard

* updates per PR review

* updated bootmagic setting

* updated LAYOUT

* updated imgur url

Fix Redefinition of OLED_TIMEOUT (#6628)

consistency

Add a note about clang-format to the changelog

Merge point for 2019 Aug 30 Breaking Change

clang-format changes

Hotfix: Reinstate the KC_DELT alias

add lufa as a submodule

Fix the LUFA lib to use a submodule instead of just files (#6245)

* Remove LUFA files

* Update descriptions for newer version of LUFA

* Create PR6245.md

* Fix CDC(Serial) type errors

* Fix missed merge conflict for AUDIO_DTYPE_CSInterface

Update Atreus to current code conventions (#5849)

* Update atreus to current code conventions - add multi revision instead of defines

* Remove config.h duplication from user keymaps

* Add breaking change log

* Add missing pragma once

Migrate ACTION_BACKLIGHT_* to BL_* (#6299)

* Branch point for 2019 Aug 30 Breaking Change

* LUFA USB descriptor cleanup (#4871)

* Fix indentation

* Fix braces

* Expand descriptor headers

* Align descriptor elements

* Nicer formatting

* Tidy up preprocessor statements

* Remove VERSION_BCD redefine - LUFA_VERSION_INTEGER is currently 0x170418

* Tidy up comments

* Tweak ordering of  HID report elements (no functional changes)

* We don't need all of these newlines

* Move default USB_MAX_POWER_CONSUMPTION closer to where it makes sense

* Ask nicely

* Add some more comments

* Change indentation back to 4 spaces

* Add changelog entry

* Language Keymap extras backport from ZSA fork (#6198)

* Swedish extra keymap refactor

* Fix swedish $ sign definition (#81)

* Fix br abnt2 keymap compilation error

* Add PR changelog doc

* Update PR6198.md

* Enforce clang-format (#6293)

* Enforce clang-format on commit for core files

* forgot about tests

* Migrate ACTION_LAYER_MOMENTARYs to MO() (#5176)

* Migrate ACTION_LAYER_MOMENTARYs to MO()

* Add changelog entry

* Update docs/ChangeLog/20190830/PR5176.md

Co-Authored-By: skullydazed <skullydazed@users.noreply.github.com>

* Migrate ACTION_BACKLIGHT_* to BL_*

* Add changelog

* Update docs/ChangeLog/20190830/PR6299.md

Co-Authored-By: skullydazed <skullydazed@users.noreply.github.com>

Remove KC_DELT alias in favor of KC_DEL (#6327)

* Remove KC_DELT alias in favor of KC_DEL

* Add changelog

Fix vusb compiling after clang-format