PHP notices since 0.4.2 update

I’ve created an issue on Github regarding two PHP notices that have appeared since the 0.4.2 update:

Notice: Undefined variable: structured_data_logo in C:\xampp\htdocs\example\wp-content\plugins\accelerated-mobile-pages\templates\features.php on line 725

Notice: Uninitialized string offset: 0 in C:\xampp\htdocs\example\wp-content\plugins\wordpress-seo\frontend\class-twitter.php on line 476