Fixed an invalid cross-module reference.

Author: Mike Orr

user_sync/config.py

@@ -393,7 +393,7 @@ def create_dashboard_group(self, dashboard_group_qualified_name):
         group = None
         if (len(group_name) > 0):
             # check for existing group in case someone mistakenly declared an extended group that's already a mapping target
-            group = user_sync.rules.get_dashboard_group(group_name, organization_name)
+            group = user_sync.rules.Group.get_dashboard_group(group_name, organization_name)
             if group is None:
                 group = user_sync.rules.Group(group_name, organization_name)