Resolve "list of subjects should contain columns dependent on the study"

Closes #184 (closed)

smash/web/api_views/appointment.py

@@ -91,7 +91,9 @@ def serialize_appointment(appointment):
         subject_string = study_subject.subject.last_name + " " + study_subject.subject.first_name
         nd_number = study_subject.nd_number
         screening_number = study_subject.screening_number
-        phone_numbers = ", ".join(filter(None, [study_subject.subject.phone_number, study_subject.subject.phone_number_2, study_subject.subject.phone_number_3]))
+        phone_numbers = ", ".join(filter(None,
+                                         [study_subject.subject.phone_number, study_subject.subject.phone_number_2,
+                                          study_subject.subject.phone_number_3]))
         appointment_types = ", ".join([unicode(type) for type in appointment.appointment_types.all()])
     else:
         title = appointment.comment