drop support for 'websocketPath' and 'useExternalWebsocket' configuration points

config/config.example.js

@@ -97,15 +97,17 @@ module.exports = {
 
     httpUnsafeOrigin: domain,
 
-    /*  your server's websocket url is configurable
-     *  (default: '/cryptpad_websocket')
+    /*  Your CryptPad server will share this value with clients
+     *  via its /api/config endpoint.
      *
-     *  websocketPath can be relative, of the form '/path/to/websocket'
-     *  or absolute, specifying a particular URL
+     *  If you want to host your API and asset servers on different hosts
+     *  specify a URL for your API server websocket endpoint, like so:
+     *  wss://api.yourdomain.com/cryptpad_websocket
      *
-     *  'wss://cryptpad.fr:3000/cryptpad_websocket'
+     *  Otherwise, leave this commented and your clients will use the default
+     *  websocket (wss://yourdomain.com/cryptpad_websocket)
      */
-    websocketPath: '/cryptpad_websocket',
+    //externalWebsocketPath: 'wss://api.yourdomain.com/cryptpad_websocket
 
     /*  CryptPad can be configured to send customized HTTP Headers
      *  These settings may vary widely depending on your needs

server.js

@@ -166,7 +166,7 @@ app.get('/api/config', function(req, res){
             },
             removeDonateButton: (config.removeDonateButton === true),
             allowSubscriptions: (config.allowSubscriptions === true),
-            websocketPath: config.websocketPath,
+            websocketPath: config.externalWebsocketPath,
             httpUnsafeOrigin: config.httpUnsafeOrigin.replace(/^\s*/, ''),
             adminEmail: config.adminEmail,
             adminKeys: admins,
@@ -234,7 +234,7 @@ var nt = nThen(function (w) {
         log = config.log = _log;
     }));
 }).nThen(function (w) {
-    if (config.useExternalWebsocket) {
+    if (config.externalWebsocketPath) {
         // if you plan to use an external websocket server
         // then you don't need to load any API services other than the logger.
         // Just abort.