add fieldsets to template/folder form and update docstrings

also remove erroneous pytest.ini cfg and reset button

pytest.ini

@@ -1,4 +1,5 @@
 [pytest]
+xfail_strict=true
 testpaths = tests
 log_level = 999
 env =
@@ -10,6 +11,3 @@ env =
     ZENDESK_API_KEY=test
     STATSD_PREFIX=stats-prefix
     REDIS_ENABLED=0
-# :thinking_face:
-filterwarnings =
-    ignore::pytest.RemovedInPytest4Warning