added access to websocket server configuration for fine grained control

Author: Jay Wolfe

lib/Web.js

@@ -11,11 +11,16 @@ function WebBot(configuration) {
 
     controller.excludeFromConversations(['hello', 'welcome_back', 'reconnect']);
 
-    controller.openSocketServer = function(server) {
+    /**
+     * wsConfiguration is an object that accepts the normal `ws` configuration object
+     * see `https://github.com/websockets/ws/blob/HEAD/doc/ws.md#new-websocketserveroptions-callback`
+     */
+    controller.openSocketServer = function(server, wsConfiguration = {}) {
 
         // create the socket server along side the existing webserver.
         var wss = new WebSocket.Server({
-            server
+            server,
+            ...wsConfiguration,
         });
 
         // Expose the web socket server object to the controller so it can be used later.