Add a test for singularly applied middleware on batched network interface
Add a test for singularly applied middleware on batched network interface

Before working code to make sure batchedNetworkInterface works as
expected. Add a test

apollostack/apollo-client,cesarsolorzano/apollo-client,apollostack/apollo-client,cesarsolorzano/apollo-client,apollostack/apollo-client,apollographql/apollo-client,apollographql/apollo-client,cesarsolorzano/apollo-client