runtime in script

mjs.go

@@ -128,6 +128,8 @@ func (s *Mjs) Exec(name string, data map[string]interface{}) (modified int64, er
 		return nil
 	}
 
+	vm.Set("runtime", vm)
+
 	vm.Set("log", func(vals ...interface{}) {
 		log.Println(vals...)
 	})