Fix compile issues for ASIO_STANDALONE

Author: Guillaume Egles

websocketpp/common/asio.hpp

@@ -88,9 +88,6 @@ namespace lib {
         inline lib::chrono::milliseconds milliseconds(long duration) {
             return lib::chrono::milliseconds(duration);
         }
-        
-        } // namespace error
-        } // namespace ssl
     } // namespace asio
 
 #else

websocketpp/transport/asio/endpoint.hpp

@@ -89,7 +89,7 @@ class endpoint : public config::socket_type {
     typedef lib::shared_ptr<lib::asio::io_service::work> work_ptr;
 
     /// Type of socket pre-bind handler
-    typedef lib::function<boost::system::error_code(acceptor_ptr)> tcp_pre_bind_handler;
+    typedef lib::function<lib::error_code(acceptor_ptr)> tcp_pre_bind_handler;
 
     // generate and manage our own io_service
     explicit endpoint()