Of course, a big question is - how much are the plustools missing?

I really don't like the idea of removing them again - that will just
postpone the issue, because when 4.0 comes, no-one will have worked on
PlusTools (wanna bet?). So we need to force ourselves to work on it,
and the only way I can think of is by dropping the old stuff.

Step 1 would probably be making RB subclass of PlusTools...