Drop Upgrade Support for 2.8?

[Gervase Markham]

Max Kanat-Alexander wrote:
> 	See https://bugzilla.mozilla.org/show_bug.cgi?id=283403

This bug says to me that we shouldn't be creating the tables all at 
once, we should be creating them in the "checksetup timeline flow".

(We all know checksetup.pl needs a spanking anyway.)

> 	I think that we should just drop support in Bugzilla for upgrading from
> 2.8. At this point, it's almost impossible for us to know how our
> changes are going to affect people upgrading from such an old version,
> anyhow.

But if we fix problems like the one above, then it doesn't matter how 
far back you go. If 2.8 upgrades successfully to 2.10, and 2.10 to 2.12, 
and so on, then everything is fine.

Gerv