Merge pull request #95 from team5ru/master

#94 No HandshakeRequest in websocket subscription DataFetchingEnvironment (fix #94)

Author: oliemansm

src/main/java/graphql/servlet/internal/ApolloSubscriptionProtocolHandler.java

@@ -58,7 +58,8 @@ public void onMessage(HandshakeRequest request, Session session, WsSessionSubscr
                     subscriptions,
                     message.id,
                     input.getQueryInvoker().query(input.getInvocationInputFactory().create(
-                        input.getGraphQLObjectMapper().getJacksonMapper().convertValue(message.payload, GraphQLRequest.class)
+                        input.getGraphQLObjectMapper().getJacksonMapper().convertValue(message.payload, GraphQLRequest.class),
+                        (HandshakeRequest) session.getUserProperties().get(HandshakeRequest.class.getName())
                     ))
                 );
                 break;