Add Person.middle_name to the fieldset.

tailbone/views/people.py

@@ -93,6 +93,7 @@ class PeopleView(MasterView):
         fs.configure(
             include=[
                 fs.first_name,
+                fs.middle_name,
                 fs.last_name,
                 fs.display_name,
                 fs.phone.label("Phone Number").readonly(),