add websocket server to this dir. fix stuff for client

websocket_server/node_modules/ps-tree/bin/ps-tree.js

@@ -0,0 +1,16 @@
+#!/usr/bin/env node
+
+'use strict';
+
+//
+// Change the default parent PID if running
+// under Windows.
+//
+var ppid = 1;
+if (process.platform === 'win32') {
+  ppid = 0;
+}
+
+require('../')(process.argv[2] || ppid, function (err, data) {
+  console.log(data);
+});