Had to modify the maint_counters table because Sharp's RED reader application was mis-interpreting some of the fields in the R09 file. They are now correct for at least the 2300 and 4101 models. Will have to check some others when I'm in again next week.

Of course, process_alert_email.rb had to be fixed to reflect the new tables.

Add show method to the Alert controller to display the maintenance counters for an individual alert.