Couple quick fixes to the life-preserver tray:
1) Make sure that the new single-instance functionality will not startup a prompt to open the main GUI for 30 seconds after the tray gets launched. This prevents "double-taps" on user login when the DE also starts up an instance automatically.
2) Whenever the system check timer goes off, also check that the lpreserver log file is being watched, and re-initialize the log file watcher if necessary.
Merge branch 'master' of github.com:pcbsd/pcbsd