Redhat module.sls fixes

Add missing context

Added CentOS and Oracle Linux versions mapping

Don't execute `a2dissite` on each state run

Add `onlyif` check to execute `a2dissite` only when needed.

allow absence of DocumentRoot

DocumentRoot is useless for a plain redirect or proxy vhost, no need to
force creating the directory.

Signed-off-by: Julien Cristau <julien.cristau@logilab.fr>

a2(en|dis)site requires the full name incl. the confext.

Use 'apache.confext' instead of hardcoding '.conf'

Add apache version to pillar/map.jinja

* Add apache version (2.2, 2.4) detection based on osfinger (defaults to 2.4).
* Version can be overridden in pillar (for Apache 2.4 on RHEL 6 for example)

add lookup section to pillar.example

add a boolean to a site configuration to enable or disable it

fix apache-restart ID in apache/mod_mpm according to apache/init.sls

Files in sites-available should end with .conf under Ubuntu

quote wildcard paths

RedHat fixes: change default vhostdir to redhat official

Add mod_php5 pkg for RedHat in map.jinja. Remove welcome.conf on RedHat.

Fixed missing : and uppercased D in debian

Initial commit of SPM FORMULA

Revert "corrected the key to match the pillar.example"

corrected the key to match the pillar.example

Correct variable name

Improvements to the apache-formula

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

Create defaul vhost directories when DocumentRoot is not set

Add support for SSL certificates in the proxy template

apache.vhosts.standard