[PC-BSD Testing] Update icon in tray

[Bill Leeper]

When I booted alpha 2 this evening I got the blue triangle indicating  
pbi updates. I checked and Firefox had a new pbi so I installed it. 
After I installed it the blue triangle was not replaces by the green 
check. I tried checking for updates several times with the same results 
even though it said I was up to date. Logging off and back on cleared 
the problem, however.

Bill