fix 42

- disabled 'factions helpling actor' feature after becoming friends with
Loners, Freedom or Duty (feature damaged a-life a lot by making squads
attack mutants all around them)

- disabled sks_modern spawning with scope on NPCs

- increased diversity of freedom_sci squads

- reduced discount for trading scientiscs

- disabled 'ecolog' entries in dialog_manager.ltx (attempt to fix crash
when trying to talk with wounded Loner)

- a-life changes:

* disabled smarties inside the Jupiter Plant from a-life
* reduced population on jupiter_smrter_sim_1 by 1
* enabled for a-life and reduced population on jup_b204 by 1

- tweaked xr_reach_tast.script futher to make NPCs rather run with
weapon in their hand than with it strapped (imho animation is better
that way)