JukeAlert - Fix for severe db-table-prefix issue and ui level display defect.

JukeAlert - Fix for severe db-table-prefix issue and ui level display defect.
Juke alert allows for table prefix's to be used but these were not accounted for in an update statement to set the default value of the last-visit-date.  This has been fixed.  Also, a ui formatting issue was identified for folks with snitchs at -5digits, +3digits, -5digits.  This has also been addressed.  Net result is that we lost a few characters for our group display.