Crash when unsubscribing / resubscribing

[evilC]

Firing unsubscribe sometime causes a lockup when the last subscription is removed from a device.
The DeviceEmptyHandler in SharpDX_DirectInput seems to be crashing when calling _activeDevices[e].Dispose()

        private void DeviceEmptyHandler(object sender, DeviceDescriptor e)
        {
            _logger.Log($"Device {e.DeviceHandle} instance {e.DeviceInstance} is empty, disposing...");
            _activeDevices[e].Dispose();
            _activeDevices.TryRemove(e, out _);
        }

This calls PollingDeviceHandlerBase's Dispose() method

        public override void Dispose()
        {
            _pollThread.Abort();
            _pollThread.Join();
            _pollThread = null;
        }

When running in Visual Studio, it always works, but sometimes, if not running in Visual Studio, it hangs on the line _pollthread.Join();

[evilC]

Fixed in 0.10.6