Fix Glyph of Life Tap.

SpellMgr.cpp part of the code by Karolis.Rudzevicius, thanks for it.
Fixes issue #1440.

--HG--
branch : trunk

sql/updates/8191_world_spell_proc_event.sql

@@ -0,0 +1,3 @@
+DELETE FROM spell_proc_event WHERE entry = 63320;
+INSERT INTO spell_proc_event (entry, SpellFamilyName, SpellFamilyMask0, SpellFamilyMask1, SpellFamilyMask2, procFlags) VALUES
+(63320, 5, 0x80040000, 0x00000000, 0x00008000, 0x00000400); -- Life Tap, Dark Pact

src/game/SpellMgr.cpp

@@ -3601,6 +3601,8 @@ void SpellMgr::LoadSpellCustomAttr()
         case 20335:
         case 20336:
         case 20337:
+        // Glyph of Life Tap
+        case 63320:
         // Entries were not updated after spell effect change, we have to do that manually :/
             spellInfo->AttributesEx3 |= SPELL_ATTR_EX3_CAN_PROC_TRIGGERED;
             count++;

src/game/Unit.cpp

@@ -5638,6 +5638,12 @@ bool Unit::HandleDummyAuraProc(Unit *pVictim, uint32 damage, AuraEffect* trigger
                     pVictim->RemoveAurasWithMechanic(1<<MECHANIC_STUN, AURA_REMOVE_BY_ENEMY_SPELL);
                     return true;
                 }
+                // Glyph of Life Tap
+                case 63320:
+                {
+                    triggered_spell_id = 63321; // Life Tap
+                    break;
+                }
             }
             break;
         }
@@ -5963,12 +5969,6 @@ bool Unit::HandleDummyAuraProc(Unit *pVictim, uint32 damage, AuraEffect* trigger
                     triggered_spell_id = 63311;
                     break;
                 }
-                // Glyph of Life Tap
-                case 63320:
-                {
-                    triggered_spell_id = 63321;
-                    break;
-                }
                 // Nightfall
                 case 18094:
                 case 18095: