Fix gravatar URL and one possible redirect loop

realms/lib/util.py

@@ -119,7 +119,7 @@ def filename_to_cname(filename):
 
 
 def gravatar_url(email):
-    return "//www.gravatar.com/avatar/" + hashlib.md5(email).hexdigest()
+    return "https://www.gravatar.com/avatar/" + hashlib.md5(email).hexdigest()
 
 
 def in_virtualenv():

realms/modules/auth/views.py

@@ -69,4 +69,4 @@ def settings():
 @blueprint.route("/logout")
 def logout():
     User.logout()
-    return redirect("/")
+    return redirect(url_for(current_app.config['ROOT_ENDPOINT']))