[chore] Update default values for pingTimeout (#551)

`pingTimeout` now defaults to 5 seconds instead of 60 seconds.

Author: darrachequesne

README.md

@@ -196,7 +196,7 @@ to a single process.
       - `Object`: optional, options object
     - **Options**
       - `pingTimeout` (`Number`): how many ms without a pong packet to
-        consider the connection closed (`60000`)
+        consider the connection closed (`5000`)
       - `pingInterval` (`Number`): how many ms before sending a new ping
         packet (`25000`)
       - `upgradeTimeout` (`Number`): how many ms before an uncompleted transport upgrade is cancelled (`10000`)

lib/server.js

@@ -37,7 +37,7 @@ function Server (opts) {
   opts = opts || {};
 
   this.wsEngine = opts.wsEngine || process.env.EIO_WS_ENGINE || 'ws';
-  this.pingTimeout = opts.pingTimeout || 60000;
+  this.pingTimeout = opts.pingTimeout || 5000;
   this.pingInterval = opts.pingInterval || 25000;
   this.upgradeTimeout = opts.upgradeTimeout || 10000;
   this.maxHttpBufferSize = opts.maxHttpBufferSize || 10E7;