更新前端静态网页获取方式，放弃使用后端获取api

frontend/node_modules/promise/setimmediate/finally.js

@@ -0,0 +1,16 @@
+'use strict';
+
+var Promise = require('./core.js');
+
+module.exports = Promise;
+Promise.prototype.finally = function (f) {
+  return this.then(function (value) {
+    return Promise.resolve(f()).then(function () {
+      return value;
+    });
+  }, function (err) {
+    return Promise.resolve(f()).then(function () {
+      throw err;
+    });
+  });
+};