fix #117. Avoid assigning a VRS that starts at 2pm to a Shift that ends at 2pm.
Fix #104. Have JobListingFS signup prefill Number of Hours on Volunteer Hours record.
fix #100. Add a Number of Volunteers field to Volunteer Recurrence Schedules.
#97.  JobCalendar now takes initialDate URL parameter in the format yyyy-mm-dd, and doesn't require a time value.
fix #86.  added VRS field Comments which now gets copied to the Volunteer Hours Comments field.
Fixed #74. Clicking on Shift from Web Calendar Should give direct listing, not all shifts, if nMonthsToShow = 0.