FEATURE: Archlinux support
FEATURE: Windows support
FEATURE: Enhanced CI/CD
FEATURE: modular states

BREAKING CHANGE: 'apache.sls' converted to new style 'init.ssl'
BREAKING CHANGE: "logrotate.sls" became "config/logrotate.sls"
BREAKING CHANGE: "debian_full.sls" became "config/debian_full.sls"
BREAKING CHANGE: "flags.sls" became "config/flags.sls"
BREAKING CHANGE: "manage_security" became "config/manage_security.sls"
BREAKING CHANGE: "mod_*.sls" became "config/mod_*.sls"
BREAKING CHANGE: "no_default_host.sls" became "config/no_default_host.sls"
BREAKING CHANGE: "own_default_host.sls" became "config/own_default_host.sls"
BREAKING CHANGE: "register_site.sls" became "config/register_site.sls"
BREAKING CHANGE: "server_status.sls" became "config/server_status.sls"
BREAKING CHANGE: "vhosts/" became "config/vhosts/"
BREAKING CHANGE: "mod_security/" became "config/mod_security/"

NOT-BREAKING CHANGE: 'config.sls' became 'config/init.sls'
NOT-BREAKING CHANGE: 'uninstall.sls' symlinked to 'clean.sls'

The current Red Hat config allows to set DefaultCharset to a value.
In certain situations it is necessary to leave it unconfigured thouguh.

Make the content optional, if the value of apache.default_charset is None,
the item is skipped. Otherwise it defaults to UTF-8.

The docroot fix from PR#240 worked fine for default servers.
But as soon as one uses vhosts this broke as the vhosts were
created under the docroot in /var/www/html rather than the better
/var/www.

Fix this by differentiating between docroot and wwwdir.
Further allow to override both in Red Hat-style configs.
The override allows to reuse this formula for the softwarecollections
rpms.

- Added more modules and configuration options
 - Renamed sls files to reflect what they do.
 - added mpm options for Debian