heal spell modificator for healing other players

[igroglaz]

add modificator to server config which will give possibility to assign precise power of healing spell effect on other player

atm heal spell got distance 0 to disable it's use on other players to reduce cheezing mechanics. but it's actually too harsh. it's better to give possiblity to heal other players, but make it 10 times less effective. so it will be possible to heal bodies with 0/0 hp

[igroglaz]

I suppose it could be quite close with this task #75 (modificators of spell's damage in PvP).

It will be awesome to control also buffs which player could apply on others - like protection from magic, haste, bless etc