Fixed bug where device state object was dropped from hue api device

response object. This caused devices to appear offline and invalid
response interpretation by the echo.

Fixes #93

src/main/java/com/bwssystems/HABridge/dao/DeviceDescriptor.java

@@ -166,6 +166,8 @@ public class DeviceDescriptor{
 	}
 
 	public DeviceState getDeviceState() {
+		if(deviceState == null)
+			deviceState = DeviceState.createDeviceState();
 		return deviceState;
 	}