chown operation after applied 027 umask

[nijel]

after setting umask (issues: #59 & #61) a chown call need to be made on nearly all files used by container (such as: config.inc.php, config.secret.inc.php) to set nobody as group (thus giving read access to PHP-FPM).

fix:
chown all files that need read access by nobody with nobody group.

Reported by Emanuel Bronshtein.