Changelog 2021q4 (#15325)

* Changelog.

* Remove the asymmetric encoder PR from listing due to revert.

* More docs

* More docs

* More docs

* Links to changelog, updated schedule, slotted in 2 weeks of testing at the end so that there's no ambiguity with PR merge dates.

* Clarify keyboard moves.

* Fix dates

* Sidebar

* Fixup dates.

* Fixup dates.

* Wording.

fix typos (#15316)

Fix HOLD_ON_OTHER_KEY_PRESS after #11059 (#15307)

that broke compilation because of a typo: KEYPRESS should have been
KEY_PRESS

Fix build. (#15322)

[Keyboard] Fix call to `pointing_device_handle_buttons` (#15313)

Re-add encoder tests (#15312)

Co-authored-by: Balz Guenat <balz.guenat@gmail.com>

[Bug] Revert Assymmetrical Split Encoder support (#12090) (#15311)

* Revert "fix broken macro in transport.h (#15239)"

This reverts commit 06f18e22d9aff0afa4dce101a6a1b2cae5511365.

* Revert "Rework encoders to enable asymmetric split keyboards (#12090)"

This reverts commit 32215d5bff52262542a2f8d2a221b0303f02c019.

WB32F3G71 config migration with removal of unnecessary items. (#15309)

* Config migration with removal of unnecessary items.

* Removed as per suggestion.

Westberrytech pr (#14422)

* Added support for WB32 MCU

* Modified eeprom_wb32.c

* Remove the eeprom_wb32-related code

Add script for performing compilation size regression investigations. (#15303)

* Add script for performing compilation size regression investigations.

* Print deltas

* Correct scoping.

* Concurrency control

* Job count control, skip zeros (unless no build output), fix usage.

* Add usage under -h arg.

* Updated usage output.

* Copyright header.

More headroom. (#15302)

More headroom. (#15301)

Documentation typo fix (#15298)

* Fix WS2812 driver docs typo

New feature: `DYNAMIC_TAPPING_TERM_ENABLE` (#11036)

* New feature: `DYNAMIC_TAPPING_TERM_ENABLE`

3 new quantum keys to configure the tapping term on the fly.

* Replace sprintf call in tapping_term_report by get_u16_str

* Replace tab with 4 spaces

Tidy up adjustable ws2812 timing (#15299)

Add ifndef to WS2812 timing constraints (#14678)

* Add ifndef to WS2812 timing constraints

Due to the way that the PrimeKB Meridian PCB was designed, this change
is needed in order to properly adjust the LEDs.

Testing:
* Compiled primekb/meridian:default successfully
* Compiled random board (walletburner/neuron:default) successfully

* Fix linting errors

Missed some spacing

* More linting fixes

Spacing on the comments... really?

* Rename WS2812 timing parameters for clarity; add comments

* Add docs update for the WS2812 timing macros

* Fix typo on comment

* Add ifndef for WS2812_RES

* Update double backticks and table with parameters

* Move timing adjustments documentation to ws2812_drivers

* Move timings adjustment discussion to bitbang section

* Update T0H and T1H definitions in subtractions

* format

Co-authored-by: Gondolindrim <alvaro.volpato@usp.br>
Co-authored-by: zvecr <git@zvecr.com>

Add Retro Shift (Auto Shift for Tap Hold via Retro Tapping) and Custom Auto Shifts (#11059)

* Add Retro Shift and Custom Auto Shifts

* Fix compilation errors with no RETRO_SHIFT value

Remove use of __flash due to LTO issues (#15268)

Merge remote-tracking branch 'origin/master' into develop

Revert "handwired/split89 Layout Macro Refactor (#15210)" (#15284)

This reverts commit 26ae43219001dfe20aa525b6fb35f2aeb2b76617.

Requested by jurassic73.