Fix non-PCH build

--HG--
branch : trunk

src/server/game/Spells/Spell.h

@@ -23,6 +23,7 @@
 
 #include "GridDefines.h"
 #include "SharedDefines.h"
+#include "ObjectMgr.h"
 
 class Unit;
 class Player;

src/server/game/Spells/SpellScript.cpp

@@ -16,6 +16,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#include <string>
 #include "SpellScript.h"
 #include "Spell.h"
 

src/server/game/Spells/SpellScript.h

@@ -19,6 +19,7 @@
 #ifndef __SPELL_SCRIPT_H
 #define __SPELL_SCRIPT_H
 
+#include "Util.h"
 #include "SharedDefines.h"
 
 class Unit;