Switch to side-by-side view

--- a/Allura/allura/lib/security.py
+++ b/Allura/allura/lib/security.py
@@ -31,6 +31,9 @@
         'clear cache'
         self.users = {}
         self.projects = {}
+
+    def clear_user(self, user_id, project_id=None):
+        self.users.pop((user_id, project_id), None)
 
     def load_user_roles(self, user_id, *project_ids):
         '''Load the credentials with all user roles for a set of projects'''