update default config

node_modules/bufferutil/package.json

@@ -2,18 +2,18 @@
   "_args": [
     [
       {
-        "raw": "bufferutil",
+        "raw": "bufferutil@^3.0.0",
         "scope": null,
         "escapedName": "bufferutil",
         "name": "bufferutil",
-        "rawSpec": "",
-        "spec": "latest",
-        "type": "tag"
+        "rawSpec": "^3.0.0",
+        "spec": ">=3.0.0 <4.0.0",
+        "type": "range"
       },
       "/home/vincent/Projects/SublimeTextProjects/shadowsocks-over-websocket"
     ]
   ],
-  "_from": "bufferutil@latest",
+  "_from": "bufferutil@>=3.0.0 <4.0.0",
   "_id": "bufferutil@3.0.0",
   "_inCache": true,
   "_installable": true,
@@ -30,22 +30,21 @@
   "_npmVersion": "4.1.2",
   "_phantomChildren": {},
   "_requested": {
-    "raw": "bufferutil",
+    "raw": "bufferutil@^3.0.0",
     "scope": null,
     "escapedName": "bufferutil",
     "name": "bufferutil",
-    "rawSpec": "",
-    "spec": "latest",
-    "type": "tag"
+    "rawSpec": "^3.0.0",
+    "spec": ">=3.0.0 <4.0.0",
+    "type": "range"
   },
   "_requiredBy": [
-    "#USER",
     "/"
   ],
   "_resolved": "http://registry.npmjs.org/bufferutil/-/bufferutil-3.0.0.tgz",
   "_shasum": "afbb831c47229accf0b1f207d4a9942841b0ab0f",
   "_shrinkwrap": null,
-  "_spec": "bufferutil",
+  "_spec": "bufferutil@^3.0.0",
   "_where": "/home/vincent/Projects/SublimeTextProjects/shadowsocks-over-websocket",
   "author": {
     "name": "Einar Otto Stangvik",