Removing deprecated class stub.
Ensuring the site directory exists when creating a site where the site folder is not already created by the VCS checkout.
Sorting tasks alphabetically.
Prevent evaluating ephemeral keys unnecessarily.
Merging in a major refactor of site behavior, tasks, and configuration.
Removing Pimple and Symfony components from the lib folder because they should be installed and updated via composer, updating composer files.
Adding composer autoloader.
Adding method to remove a task from the TaskStack.
Fix to enable the default caching from drupal core (since core .htaccess is ignored)