Time calibration not working on UST 20lx

[stwirth]

The driver output is this:

[ INFO] [/base_laser] [1413847603.907442318]: Connected to network device with ID: H0000108
[ INFO] [/base_laser] [1413847603.982513060]: Starting calibration. This will take a few seconds.
[ WARN] [/base_laser] [1413847603.982561649]: Time calibration is still experimental.
[ INFO] [/base_laser] [1413847604.508127111]: Calibration finished. Latency is: -402.6954.
[ INFO] [/base_laser] [1413847604.527380193]: Streaming data.

After that the timestamp of the laser messages is about 402s off of ROS time.