Merge pull request zaphoyd#398 from rec/uninitialized-variable

Initialize websocketpp::transport::asio::endpoint::m_io_service to NULL.

Author: zaphoyd

websocketpp/transport/asio/endpoint.hpp

@@ -87,7 +87,8 @@ class endpoint : public config::socket_type {
 
     // generate and manage our own io_service
     explicit endpoint()
-      : m_external_io_service(false)
+      : m_io_service(NULL)
+      , m_external_io_service(false)
       , m_listen_backlog(0)
       , m_reuse_addr(false)
       , m_state(UNINITIALIZED)