[mr3161] Finally fix creatures reattack after chase moving
* Enter to evade mode on next update tick (if not found a new target)
[mr3162] Don't add threat from friendly targets; some codestyle
[mr3163] Some improvements and codestyle in stat system
[mr3164] Some improvements and codestyle in vmaps
[mr3165] Fix pos selection for summoned creatures
[mr3166] Creature: some improvements and codestyle