Record optout stats for users with 1+ edits and 100+ edits

These have been referred to at various places so let's track them.
Don't put them in the tsv file for now, the dashboard will be
crowded already and this can be changed easily later if needed,
but there is no way to get the data later if we don't do it now.

Change-Id: Ic80e0c2bef97b28d51f69a74a809ef6c82dd0424
Remove czwiki, there is no such thing

Change-Id: I8a74b6f0714664359787983951fd7412e7c49743