- Add support for super users

- Add a super user API
- Add a super user interface

config.py

@@ -126,6 +126,9 @@ class DefaultConfig(object):
       STATUS_TAGS[tag_name] = tag_svg.read()
 
 
+  # Super user config. Note: This MUST BE None for the default config.
+  SUPER_USERS = None
+
   # Feature Flag: Whether billing is required.
   FEATURE_BILLING = True
 
@@ -136,4 +139,7 @@ class DefaultConfig(object):
   FEATURE_GITHUB_LOGIN = True
 
   # Feature flag, whether to enable olark chat
-  FEATURE_OLARK_CHAT = True
+  FEATURE_OLARK_CHAT = True
+
+  # Feature Flag: Whether super users are supported.
+  FEATURE_SUPER_USERS = False