restore CCLuaEngine missed methods

scripting/lua/cocos2dx_support/CCLuaEngine.cpp

@@ -54,6 +54,16 @@ bool CCLuaEngine::init(void)
     return true;
 }
 
+void CCLuaEngine::addSearchPath(const char* path)
+{
+    m_stack->addSearchPath(path);
+}
+
+void CCLuaEngine::addLuaLoader(lua_CFunction func)
+{
+    m_stack->addLuaLoader(func);
+}
+
 void CCLuaEngine::removeScriptObjectByCCObject(CCObject* pObj)
 {
     m_stack->removeScriptObjectByCCObject(pObj);

scripting/lua/cocos2dx_support/CCLuaEngine.h

@@ -55,6 +55,17 @@ public:
         return m_stack;
     }
     
+    /**
+     @brief Add a path to find lua files in
+     @param path to be added to the Lua path
+     */
+    virtual void addSearchPath(const char* path);
+    
+    /**
+     @brief Add lua loader, now it is used on android
+     */
+    virtual void addLuaLoader(lua_CFunction func);
+    
     /**
      @brief Remove CCObject from lua state
      @param object to remove