解决接口header单例问题

@@ -57,7 +57,7 @@
     "urlencode": "^1.1.0",
     "uuid": "^2.0.2",
     "yoho-express-session": "^2.0.0",
-    "yoho-node-lib": "=0.6.19",
+    "yoho-node-lib": "=0.6.20",
     "yoho-zookeeper": "^1.0.10",
     "yo-cli": "=1.0.7"
   },

@@ -10308,9 +10308,9 @@ yoho-jquery@^1.12.4:
   version "1.12.4"
   resolved "http://npm.yohops.com/yoho-jquery/-/yoho-jquery-1.12.4.tgz#22499b325f293ee8b1d60559777348156494926d"
 
-yoho-node-lib@=0.6.17:
-  version "0.6.17"
-  resolved "http://npm.yohops.com/yoho-node-lib/-/yoho-node-lib-0.6.17.tgz#9cc931bdd2815603c4848176eda913996c94c31e"
+yoho-node-lib@=0.6.20:
+  version "0.6.20"
+  resolved "http://npm.yohops.com/yoho-node-lib/-/yoho-node-lib-0.6.20.tgz#682dbad0c5d0cbe79987dfddb872bc16c6cfb6a3"
   dependencies:
     dnscache "^1.0.1"
     handlebars "^4.0.5"