Order data groups/sets/types by name by default.

stagecraft/apps/datasets/models/data_group.py

@@ -12,3 +12,4 @@ def __str__(self):
 
     class Meta:
         app_label = 'datasets'
+        ordering = ['name']

stagecraft/apps/datasets/models/data_set.py

@@ -129,3 +129,4 @@ def delete(self, *args, **kwargs):
     class Meta:
         app_label = 'datasets'
         unique_together = ['data_group', 'data_type']
+        ordering = ['name']

stagecraft/apps/datasets/models/data_type.py

@@ -12,3 +12,4 @@ def __str__(self):
 
     class Meta:
         app_label = 'datasets'
+        ordering = ['name']