Update landing page to use gravatar.

endpoints/api.py

@@ -7,6 +7,7 @@ from functools import wraps
 from data import model
 from app import app
 from util.names import parse_repository_name
+from util.gravatar import compute_hash
 from auth.permissions import (ReadRepositoryPermission,
                               ModifyRepositoryPermission,
                               AdministerRepositoryPermission)
@@ -29,6 +30,7 @@ def get_logged_in_user():
     'anonymous': False,
     'username': user.username,
     'email': user.email,
+    'gravatar': compute_hash(user.email),
   })