Minor fix for host has_active_failures field, indentation on custom_filters file.

ansibleworks/main/custom_filters.py

@@ -4,8 +4,6 @@
 from rest_framework.filters import BaseFilterBackend
 from django.core.exceptions import PermissionDenied
 
-# TODO: does order_by still work?
-
 class CustomFilterBackend(object):
 
     def filter_queryset(self, request, queryset, view):

ansibleworks/main/models/__init__.py

@@ -204,7 +204,8 @@ class Host(CommonModelNameNotUnique):
 
     @property
     def has_active_failures(self):
-        return self.last_job_host_summary and self.last_job_host_summary.failed
+        return bool(self.last_job_host_summary and
+                    self.last_job_host_summary.failed)
 
     # Use .job_host_summaries.all() to get jobs affecting this host.
     # Use .job_events.all() to get events affecting this host.