Default to non parallel QueryConfig.
Default to non parallel QueryConfig.

If parallel would be default a lot of threads are created when using query configs in some places like vectors even if the threads might get replaced later on.

thomaskrause/graphANNIS,thomaskrause/graphANNIS,thomaskrause/graphANNIS,thomaskrause/graphANNIS,thomaskrause/graphANNIS,thomaskrause/graphANNIS,thomaskrause/graphANNIS