added a new model for clinic score
added calculation of quality and quantity scores for clinics, and displaying in template
removed intcomma from template
fixed wrong facility report table data
removed unused comments
added readonly permissions to visit
current week is not greater than today
Merge branch 'quality-quantity' into current-week
Merge branch 'staff_user' into current-week
fixed week-filter
fixed unused comment
quality-quantity headers
merged with current-week branch