Merge pull request geerlingguy#130 from betheoutlier/encapsulate-path…

…s-vhosts

The documentroot paths for the vhosts were not encapsulated in quotes…

Bump minimum Ansible version requirement.

PR geerlingguy#127 follow-up: Add support for Amazon Linux.

PR geerlingguy#118: Oxford comma.

Issue geerlingguy#103, PR geerlingguy#63: Add notes on basic HTTP auth.

Fixes geerlingguy#110: Ansible 2.2 causes 'apache_packages' is undefi…

…ned.

Adjust valid apt cache time.

Merge pull request geerlingguy#85 from Christoph-D/single-config

Merge the templates for apache 2.2 and 2.4

Add Xenial to supported Ubuntu versions.

PR geerlingguy#83 follow-up