Show School Release Dates on Calendar and Participant Schedule

This is a checkbox at the site-level under Site Details in the section "Attendance & Meal Count Settings".

Only Sponsor Admin users can edit this checkbox.

Checking this box does two things:

1. It shows a school bus on the menu calendar. (School Release Days have a slash through the bus)

2. It allows users to enter an alternate schedule for School Release Days (either non-school days during the school year or summer days).