Fix enablerepo empty string behavior to work around Ansible 2.7.0 bug.

Fixes #3: Fix deprecation warnings for 'include' in Ansible 2.4+.

Fix deprecation warnings in Ansible 2.5 for state 'present'.

Merge pull request #2 from oxyc/ubuntu12

Dont force source install on Ubuntu 12.04

Fixes #1: Make PHP Redis extension work with PHP 7.0.

Update to conform to geerlingguy.php 2.0.0 role version.

Fix failing test.

Force source installation on Ubuntu 12.04.

Magic pixie dust of idempotence.