Update markdown lib, fixes #922
Update markdown lib, fixes #922

roundcube/plugins.roundcube.net,composer/packagist,localheinz/packagist,localheinz/packagist,composer/packagist,composer/packagist,roundcube/plugins.roundcube.net,roundcube/plugins.roundcube.net,composer/packagist,localheinz/packagist