mediawiki installer updates

We always welcome patches Jamie might end up rewriting to suit his fancy, but we're always looking to make things more resilient and capable, as long as it doesn't add complexity for the end user. Table prefixes is a bit more complexity, but I think a few others already have such an option. (It seems silly to quibble about one more option...but we already have so many options, that a lot of new users find Virtualmin at the root level absolutely terrifying. It's a little bit better on the virtual server owner level, but still, more options is generally a net loss on usability.)

Anyway, I've pointed Jamie at the blue skies thread, and he'll chime in.

In the future, don't hesitate to file "task" tickets for this kind of thing. Concrete, minor, changes don't need to be discussed too much. Toss them into the ring in the tracker, and we'll either add it or tell you why not. Blue skies is all about crazy dreams and stranger things. So, adding a new option (or even better, removing a confusing one) are things that get a ticket, and adding a whole new module or product line is a blue skies thing. To make that concrete: Supporting a completely different webserver is blue skies. Supporting a new Apache directive is for the ticket tracker. ;-)