[WebSocket] Added missing method

Re-added the disableVersion method to WsServer
Updated composer meta
Updated composer lock file with latest React changes

WsServer.php

@@ -150,6 +150,14 @@ class WsServer implements MessageComponentInterface {
         }
     }
 
+    /**
+     * Disable a specific version of the WebSocket protocol
+     * @param int Version ID to disable
+     */
+    public function disableVersion($versionId) {
+        $this->versioner->disableVersion($versionId);
+    }
+
     /**
      * @param string
      * @return boolean