fixes to advance.g

[Hans Ronne]

>I did that in lieu of trying to figure out and add the necessary tables
>at the time, was trying to understand how Civ2 games were supposed to
>work.  Dunno if um_occ_mult_production would have the right effect,
>would need to compare with the original game.  (Sid Meier made some
>very clever and subtle tradeoffs, Freeciv folks have been learning
>about those the hard way... :-) )

True. I think the best way is to keep the divide-consumption-by-2 code but
add a new table (or perhaps just a utype property) instead of this
hardcoded "Granary".

Hans

Hans Ronne

hronne@pp.sbbs.se