removing plural from model names. some cleanup
diff --git a/planetstack/core/models/network.py b/planetstack/core/models/network.py
index 554bbf5..cfaffc3 100644
--- a/planetstack/core/models/network.py
+++ b/planetstack/core/models/network.py
@@ -143,7 +143,7 @@
             qs = Network.objects.filter(owner__in=slices)
         return qs
 
-class ControllerNetworks(PlCoreBase):
+class ControllerNetwork(PlCoreBase):
     objects = ControllerLinkManager()
     deleted_objects = ControllerLinkDeletionManager()