Remove unused templates and templatetags

program/templates/boxes/category.html

program/templates/boxes/current.html

program/templates/boxes/musicfocus.html

program/templates/boxes/recommendation.html

program/templates/boxes/showinformation.html

program/templates/boxes/showtopic.html

program/templates/boxes/topic.html

program/templates/boxes/type.html

program/templates/calendar.html

program/templates/collisions.html

program/templates/day_schedule.html

program/templates/host_detail.html

program/templates/host_list.html

program/templates/recommendation_list.html

program/templates/show_detail.html

program/templates/show_list.html

program/templates/styles.css

program/templates/timeslot_detail.html

program/templates/week_schedule.html

program/templates/week_schedule_timeslot.html