Resolve or postpone all XXX022/XXX021 items
We should fix everything tagged XXX022 or XXX021 in the code, or triage it and decide that it can wait, before we release 0.2.2.x-rc.
I've got a branch in my public repository, "xxx_fixups", that tries to start doing most of it. There are 5 items remaining after that branch, one of which is legacy/trac#2799 (moved) .