Bugfix+minor improvements

Calendar/Settings-Web-UI.html

@@ -295,7 +295,7 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLI
     a.href = link.href;
     a.download = link.href.substr(link.href.lastIndexOf('/') + 1);
     document.body.appendChild(a);
-		$(a).attr('download','setting.py');
+    $(a).attr('download','settings.py');
     a.click();
     document.body.removeChild(a);
   }