[V4RB] Opening modified databases

[Robert Brenstein]

>
>I think must be
>
>     db.GetVersion()
>
>For db files without opening.

Would you add it to other products as well? I presume that it would 
work without actually opening the db (and possibly updating file 
format).

Btw, I think that GetVersion will be confusing as it is not clear 
whether it refers to kernel version or schema version. There is 
already a call GetSchemaVersion which could be modified to work with 
closed db. Or may be the new call should be PeekSchemaVersion or 
FetchSchemaVersion.

Robert