TGM Plugin Activation is a PHP library that allows you to easily require or recommend plugins for your WordPress themes (and plugins). It allows your users to install, update and even automatically activate plugins in singular or bulk fashion using native WordPress classes, functions and interfaces. You can reference bundled plugins, plugins from the WordPress Plugin Repository or even plugins hosted elsewhere on the internet.
Builds onto #718
As per https://twitter.com/kelunik/status/954242454676475904
When newer images of PHP versions become available, Xdebug isn't always installed. Using this little titbit, the builds won't break because of it.