Show cached results when initially opened

[studgeek]

It can take a while for monitor to display the list when opened (I have 11 gerrit instances I have to monitor). To speed up initial display time, monitor could show cached results when initially opened. Since user is often responding to its icon color, what they act on is probably already known to the monitor. In the background the monitor would still get latest updates, and then updated the list once it gets them (assuming its still open).