LP#1329503 report edit scheduling repairs

LP#1329503 report edit scheduling repairs

* ensure default values for scheduling and recurrence are applied with each
  edited report, including today's date in the scheduler.
* If the most recent report run run_time is in the past, deafult to "run
  now"
* fix bug with propagating months recurrence
* If recurrence interval is in days and divisible by 7, present as weeks
* make date regexes easier on the eyes
* fix bug with rendering sets of org units
* fixed bug with modifying report to be "run now" from scheduled.

Signed-off-by: Bill Erickson <berick@esilibrary.com>