Trees_info off only in the start of game

[Václav]

I found this bothering bug:

I put trees_info out of order - but it was right only in the first game - because after loading trees_info is enabled back.

[Václav]

Some time passed and I found that this bug became much worst - currently tree_info has been already set on 1 - regardless of setting in the beginning game dialogue (and also in simuconf.tab). Originally tree_info was enabled after re-loading of game.