Virus visit column changes

I deployed the changes in prc-test but browsing https://prc-test.parkinson.lu/subjects raises an ajax error (414 uri too large). I don't get this error locally. I tried to increase the buffers in nginx but nothing makes it work.

This is not as a result of these changes. I tried to deploy a previous commit and got the same error.

@valentin.groues can you check prc-test machine and try to fix it? @piotr.gawron is this a known issue?

Changes:

• Change Visit 1 virus to Visit 0 RT-PCR
• Change Visit X virus to count from 0
• Filter for inconclusive
• Change rest of Visit number references in the table

smash/web/api_views/subject.py

@@ -93,12 +93,12 @@ def get_subject_columns(request, subject_list_type):
         add_column(result, 
                   'Virus {} RT-PCR'.format(virus_visit_number), 
                   'virus_test_{}'.format(one_based_idx), #always starts in 1
-                  None, #always visible
+                  study_subject_columns,
                   'yes_no_null_inconclusive_filter', study.columns)
         add_column(result, 
                    "Visit {} RT-PCR date".format(virus_visit_number), 
                    "virus_test_{}_updated".format(one_based_idx), 
-                   None, #always visible
+                   study_subject_columns,
                    "virus_test_date", study.columns)
 
     add_column(result, "Type", "type", study_subject_columns, "type_filter", study.columns)