Updated to new DataStreamUtils.py
Updated to look for NEW_INTERFACE key from directory.
Improving code to handle manager restarts.

I turned the "reset crosshairs" text into a button,
to make it more obvious that it is something to click.

Also, I added a status message at the top of the screen
to show if data is updating or not.
Improve handling of manager restarts.
Merge branch 'manager_restarts'