* Feature (rhel7/httpd 2.4) : hardening apache and code refactoring
* remove hard returns
* Add default Listen 80 in httpd.conf
In case there no vhosts defined in pillar httpd will listen on port 80.
Without this default it will not start
* empty file autoindex.conf instead of deleting it
* explicit hardening items and references from CIS
* add #3.5 hardening rule
* explain CIS recommendations categories
* add dependencies before start service
* add recommendation #7.1 Install mod_ssl
* link in readme to hardening doc
