[1.7beta2] Minions do not inherit Soul Leech mastery

[Erenion]

Minions know Soul Leech at your level, but at 1.0 mastery.
This comes into play at 5/5 Soul Leech + Adept, letting you leech a soul from a boss every 3 turns.
Your minions only leech a soul from a boss every 4 turns.