face: support IPv6-only WebSocket channels

Change-Id: Ib9ba27d04611c13882e50995d701fc1b707cea5f
Refs: #4710
diff --git a/daemon/face/websocketpp.hpp b/daemon/face/websocketpp.hpp
index 35581fe..022682b 100644
--- a/daemon/face/websocketpp.hpp
+++ b/daemon/face/websocketpp.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
- * Copyright (c) 2014-2015,  Regents of the University of California,
+/*
+ * Copyright (c) 2014-2018,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -34,8 +34,8 @@
 #pragma GCC system_header
 #pragma clang system_header
 
-#include <websocketpp/config/asio_no_tls_client.hpp>
-#include <websocketpp/client.hpp>
+#include "websocketpp/config/asio_no_tls_client.hpp"
+#include "websocketpp/client.hpp"
 #include "websocketpp/config/asio_no_tls.hpp"
 #include "websocketpp/server.hpp"