*Update procflags for Imp.Shadowform.

*Use item speed value instead of attack speed value for enchant PPM - by MaS0n.
*Correctly apply cooldown to Improved leader of the pack mana regen.
*Do not refresh duration when stack from aura is dropped - by Apoc

--HG--
branch : trunk

src/game/Player.cpp

@@ -7243,10 +7243,7 @@ void Player::CastItemCombatSpell(Unit *target, WeaponAttackType attType, uint32
             float chance = pEnchant->amount[s] != 0 ? float(pEnchant->amount[s]) : GetWeaponProcChance();
 
             if (entry && entry->PPMChance)
-            {
-                uint32 WeaponSpeed = GetAttackTime(attType);
-                chance = GetPPMProcChance(WeaponSpeed, entry->PPMChance, spellInfo);
-            }
+                chance = GetPPMProcChance(proto->Delay, entry->PPMChance, spellInfo);
             else if (entry && entry->customChance)
                 chance = entry->customChance;