#32 updating installation on multiple databases

[Carlo Bertelli]

I used the "trick" described in the manual to avoid multiple installations of VFront to serve several databases.
But now I have a problem. The upgrade is possibly made of php files and database modifications.
The "update VFront" (admin/update.php) does both, so it's very easy to make+a+big+mess (tm).
Maybe it would be better to split the two actions or add tests to verify that an updated codebase corresponds to an updated database or viceversa.
(this bug is really about 0.99.2 milestone)