In Alerts Activity, "time until" language clarified to differentiate alert
time from set time

(a previous update?) Attempting to eliminate all cases where
AlertAlarmActivity causes a duplicate CoachellerActivity to be created,
now AlertAlarmActivity will launch CoachellerActivity with flag:
FLAG_ACTIVITY_CLEAR_TOP

Fixed:  Alarm dialog shows the correct number of minutes remaining until
the set starts, UNLESS the user powered on their device after the alert
was supposed to go off.  Added special case handling to 'nice to have'
list