I want to do some more testing and implement the fast #who before
announcing it more widely.
And, we need to do something about space: 19.4mb is too big.
A lot of that comes from the changesets history... without that, it's
ca.
14.6, 4.6MB larger then the 3.8treated the same, which is quite a lot,
too. So how can we shrink it?
