Issue when marking one time reminders as paid

[amitsaxena]

When you mark one time reminders as paid, the notifications didn't stop as the due date didn't change.

Did a workaround to change the due date to Date.today so the reminders stop after the current date (problem still there: if email has been sent and user marks as paid.....still sms and fb reminders will go).

Fix it in a better manner later.