*Fix exorcism target check and crit chance calculation

*Do not apply spelldmg bonuses to conflagrate multiple times.

--HG--
branch : trunk

src/game/Spell.cpp

@@ -5826,8 +5826,11 @@ bool Spell::CheckTargetCreatureType(Unit* target) const
 {
     uint32 spellCreatureTargetMask = m_spellInfo->TargetCreatureType;
 
-    // Curse of Doom : not find another way to fix spell target check :/
-    if(m_spellInfo->SpellFamilyName==SPELLFAMILY_WARLOCK && m_spellInfo->SpellFamilyFlags.IsEqual(0,0x02,0))
+    // Curse of Doom or Exorcism
+    // These spells cannot be cast on players, however there is no clientside check for them
+    // so there is no attribute flag in dbcs which would mark these spells - we need to check them by spellfamily
+    if(m_spellInfo->SpellFamilyName==SPELLFAMILY_WARLOCK && m_spellInfo->SpellFamilyFlags.IsEqual(0,0x02,0)
+        || m_spellInfo->SpellFamilyName==SPELLFAMILY_PALADIN && m_spellInfo->SpellFamilyFlags.IsEqual(0,0x2,0))
     {
         // not allow cast at player
         if(target->GetTypeId()==TYPEID_PLAYER)

src/game/SpellEffects.cpp

@@ -484,8 +484,8 @@ void Spell::SpellDamageSchoolDmg(uint32 effect_idx)
                             (*i)->GetCasterGUID()==m_caster->GetGUID() )
                         {
                             uint32 pdamage = (*i)->GetAmount() > 0 ? (*i)->GetAmount() : 0;
-                            pdamage = m_caster->SpellDamageBonus(unitTarget, (*i)->GetSpellProto(), pdamage, DOT, (*i)->GetParentAura()->GetStackAmount());
                             damage += pdamage * 4; // 4 ticks of 3 seconds = 12 secs
+                            //damage = m_caster->SpellDamageBonus(unitTarget, (*i)->GetSpellProto(), damage, DOT, (*i)->GetParentAura()->GetStackAmount());
                             // Glyph of Conflagrate
                             if (!m_caster->HasAura(56235))
                                 unitTarget->RemoveAurasDueToSpell((*i)->GetId(), m_caster->GetGUID());

src/game/Unit.cpp

@@ -9629,6 +9629,14 @@ bool Unit::isSpellCrit(Unit *pVictim, SpellEntry const *spellProto, SpellSchoolM
                                 crit_chance+=aura->GetAmount();
                             break;
                         }
+                        // Exorcism - "If the target is Undead or Demon, it will always critically hit"
+                        else if(spellProto->SpellFamilyFlags[1]&0x2)
+                        {
+                            if(pVictim->GetCreatureType() == CREATURE_TYPE_DEMON
+                                || pVictim->GetCreatureType() == CREATURE_TYPE_UNDEAD)
+                                return true;
+                            break;
+                        }
                     break;
                     case SPELLFAMILY_SHAMAN:
                         // Lava Burst