Adjust Slaver bonus Exotic from lvl 5 to lvl 1

[Astegard]

Adjust the slaver perk to give exotic at lvl 1 instead of 5 to allow weapon focus/specialization in weapons earlier.
Also annoying should you die to below 5 and cant use your weapons anymore.

Perk in question:
https://wiki.efupw.com/index.php?title=Fighter_Perks#Slaver