增加mqtt

node_modules/es6-set/is-set.js

@@ -1,16 +0,0 @@
-"use strict";
-
-var objToString       = Object.prototype.toString
-  , toStringTagSymbol = require("es6-symbol").toStringTag
-  , id                = "[object Set]"
-  , Global            = typeof Set === "undefined" ? null : Set;
-
-module.exports = function (value) {
-	return (
-		(value &&
-			((Global && (value instanceof Global || value === Global.prototype)) ||
-				objToString.call(value) === id ||
-				value[toStringTagSymbol] === "Set")) ||
-		false
-	);
-};