Android analytics done, camera instructions added.

lib/screens/settings.dart

@@ -191,9 +191,10 @@ class SettingsState extends BaseState<SettingsScreen> {
             helper.clear().then((result) {
               Navigator.of(context).pop('');
             });
-          }).catchError((error) {
-            print(error.toString());
-            Navigator.of(context).pop('');
+          }, onError: (e) {
+            platform.invokeMethod('logError', {"message":e.toString()}).then((_) {
+              Navigator.of(context).pop('');
+            });
           });
         });
       }