Merge pull request #969 from jeremy-engel/foreign-object-rel-is-hidden

Switch call from removed is_hidden method to hidden property

Author: etianen

reversion/admin.py

@@ -116,7 +116,7 @@ def _reversion_introspect_inline_admin(self, inline):
                     ):
                         fk_name = field.name
                         break
-            if fk_name and not inline_model._meta.get_field(fk_name).remote_field.is_hidden():
+            if fk_name and not inline_model._meta.get_field(fk_name).remote_field.hidden:
                 field = inline_model._meta.get_field(fk_name)
                 accessor = field.remote_field.get_accessor_name()
                 follow_field = accessor