Deprecate PHP 7.2 support and add warnings about using it.

Merge pull request geerlingguy#55 from webarchitect609/bugfix/Unusabl…

…e_php_packages_variable

fix: Unusable php_packages variable

Merge pull request geerlingguy#58 from steinbrueckri/FixPowerTools

Yum repoid of Power Tools has changed from PowerTools to powertools

Merge pull request geerlingguy#51 from oxyc/patch-1

Fix php 7.4 not purged on debian

Fix Ubuntu installation issue if dirmngr isn't present.

Fix completely broken config from previous commit on CentOS 7.

Remove extra debug code.

Fixes geerlingguy#44: Add support for CentOS / RHEL 8 AppStream modules.

Fix potential bug with php_fpm_conf_path being undefined.

Merge branch '42-define-vars-fail'