XXX review feedback from keith
XXX rework to avoid changing api
XXX well, it works now...

*** 98,107 ****
--- 98,109 ----
  
                  target->Set(v8::String::NewSymbol(v8plus_js_factory_name),
                      v8::FunctionTemplate::New(
                      v8plus::ObjectWrap::cons)->GetFunction());
          }
+ 
+         v8plus_crossthread_init();
  }
  
  v8::Handle<v8::Value>
  v8plus::ObjectWrap::_new(const v8::Arguments &args)
  {