Remove trailing comma in array which upsets old IE
Remove trailing comma in array which upsets old IE

loop.last is not a thing. It is forloop.last
https://docs.djangoproject.com/en/1.8/ref/templates/builtins/#for

andylolz/UK-Polling-Stations,DemocracyClub/UK-Polling-Stations,chris48s/UK-Polling-Stations,andylolz/UK-Polling-Stations,chris48s/UK-Polling-Stations,DemocracyClub/UK-Polling-Stations,chris48s/UK-Polling-Stations,andylolz/UK-Polling-Stations,DemocracyClub/UK-Polling-Stations