PR geerlingguy#133 follow-up: Bump minimum Ansible version to 2.4.

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

Merge branch '118-flush-access-log'

Merge pull request geerlingguy#85 from icamys/change-extra-conf-location

Changed extra conf location in template

PR geerlingguy#109 follow-up: Clean up description in README.

Merge pull request geerlingguy#107 from lioman/master

fix vhost.j2

Merge pull request geerlingguy#105 from oxyc/vhost-filename

Followup geerlingguy#91: Add `filename` option `nginx_vhosts`

Merge pull request geerlingguy#99 from oxyc/issue-95

Issue geerlingguy#95: Add support for setting template on a per vhost basis

Merge pull request geerlingguy#91 from oxyc/separate-configs

Write vhost configurations to separate config files

PR geerlingguy#77 follow-up: Document nginx_log_format variable.