Releases notes for 0.3.22 / 0.4.8

This is a mainly a bug fix release, also with some minor new features.

Although it is no longer intended for this to be the final release, it is still planned to create a replacement rather than continue working with the existing code indefinitely.

major changes between 0.4.8pre1 and 0.4.8pre2

dclib bugs fixed include

upload slot changes

other dclib changes

valknut bugs fixed include

other valknut changes