Fixing wiki performance by purging non-editing wiki users.

[Frank Ch. Eigler]

Hi -

> I looked at the history of HomePage - it seems edits 120, 119, 111,
> 105, 54, 53, 50, 49, 48, 38, 32, 31, 30, 29, 25 were non-spam edits
> that now show as made by what looks like a hostname, rather than a
> username [...]

The youngest of these is from 2012-10-22.  Please let's those folks
self-nominate if they need editor access back.

- FChE