Updates for Heart of the Lion, Trueshot Aura, Shaman Runes

[kayla-glick]

#792
#791

• Heart of the Lion now grants 40 + 4 * (level - 20) AP or 200 AP at lvl 60
• Trueshot aura no longer grants melee AP
• Shaman static shocks proc rate now 12% with a 2-handed weapon
• Shaman Shield mastery defense now triggers from all shock spells
• Shaman shield mastery bonus defense now grants bonus Spell Power instead of Attack Power
• Shaman Way of Earth threat bonus buffed to +65% from 50%