Reduce complexity of individual methods

[pefoley2]

These methods could likely benefit from refactoring: (ion)peter@bronx ~/ion $ flake8 --max-complexity=20 . ./intranet/apps/eighth/models.py:906:1: C901 'EighthScheduledActivity.add_user' is too complex (30) ./intranet/apps/eighth/views/attendance.py:245:1: C901 'take_attendance_view' is too complex (22) ./intranet/apps/eighth/views/signup.py:20:1: C901 'eighth_signup_view' is too complex (34) ./intranet/apps/eighth/views/signup.py:266:1: C901 'eighth_multi_signup_view' is too complex (36) ./intranet/apps/eighth/views/admin/activities.py:48:1: C901 'edit_activity_view' is too complex (23) ./intranet/apps/eighth/views/admin/rooms.py:198:1: C901 'room_utilization_action' is too complex (25) ./intranet/apps/eighth/views/admin/scheduling.py:25:1: C901 'schedule_activity_view' is too complex (37) ./intranet/apps/eighth/management/commands/signup_status_email.py:45:1: C901 'Command.handle' is too complex (23) ./intranet/apps/files/views.py:130:1: C901 'files_type' is too complex (39) ./intranet/apps/search/views.py:21:1: C901 'do_ldap_query' is too complex (33) ./intranet/apps/preferences/views.py:50:1: C901 'save_personal_info' is too complex (25)