Merge branch 'feature/remove-memcached' into feature/docker

@@ -13,7 +13,7 @@ const RedisStore = redis(session);
  */
 function yohoSession(opts) {
     return (req, res, next) => {
-        let notUseRedis = _.get(req.app.locals.pc, 'session.removeRedis', false);
+        let notUseRedis = _.get(req.app.locals.pc, 'session.removeMemcached', false); // 开关字段暂时复用原字段名
 
         opts.backSession = opts.backSession || 'session2';
         if (req.session && !notUseRedis) {