fixe compiling error if not using lua

Common/DummyBindings.h

@@ -8,6 +8,8 @@ class classBinding {
   void setParentClass(){}
   template <typename cb>
   methodBinding *addMethod(std::string n, cb f){ return new methodBinding(); }
+  template <typename tObj, typename t0, typename t1, typename t2, typename t3, typename t4>
+  methodBinding *setConstructor(){ return 0; }
   template <typename tObj, typename t0, typename t1, typename t2, typename t3>
   methodBinding *setConstructor(){ return 0; }
   template <typename tObj, typename t0, typename t1, typename t2>