Core/Spells: Fixed gcc-4.7.x compile

src/server/game/Spells/Spell.h

@@ -690,6 +690,8 @@ class Spell
         // Targets store structures and data
         struct TargetInfo
         {
+            // a bug in gcc-4.7 needs a destructor to call move operator instead of copy operator in std::vector remove
+            ~TargetInfo() { }
             ObjectGuid targetGUID;
             uint64 timeDelay;
             SpellMissInfo missCondition:8;