Core/ScriptSystem:

Add basic code for runtime checks of function calls in AuraScripts
 Make AuraScript::PreventDefaultAction() do not take parameters and add description for the function
 Remove PreventDefaultEffect() from aura script, use PreventDefaultAction() instead
 Unload aura scripts memory on aura delete

--HG--
branch : trunk

src/server/game/Spells/Spell.cpp

@@ -541,10 +541,11 @@ Spell::~Spell()
     while(!m_loadedScripts.empty())
     {
         std::list<SpellScript *>::iterator itr = m_loadedScripts.begin();
-        (*itr)->Unload();
+        (*itr)->_Unload();
         delete (*itr);
         m_loadedScripts.erase(itr);
     }
+
     if (m_referencedFromCurrentSpell && m_selfContainer && *m_selfContainer == this)
     {
         // Clean the reference to avoid later crash.