[drupal8] %{drupal8}/sites => %{_sysconfdir}/%{name}

Addresses the following issues:
* #1 [drupal8] "sites" directory should point to /etc/drupal8
* #2 [drupal8] Set sites/default/ and httpd config snippit as config(noreplace)
[drupal8] Marked Apache config as %config

Addresses the following issue:
* #2 [drupal8] Set sites/default/ and httpd config snippit as config(noreplace)
[drupal8] Specific dir and file ownership

- Marked modules/profiles/themes README.txt as %doc
[drupal8] Removed example.gitignore