Fix compile without lua

Common/DummyBindings.h

@@ -13,6 +13,9 @@ 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, typename t5>
+  methodBinding *setConstructor(){ return 0; }
   template <typename tObj, typename t0, typename t1, typename t2, typename t3, 
             typename t4>
   methodBinding *setConstructor(){ return 0; }