Add default python.conf to RedHat systems

The mod_python package from EPEL on RedHat systems places a default python.conf file. This config is normally purged by puppet because it was not managed. This PR will update the python.conf file and allow customization by updating the template with further pull requests.

This config file is not required for functionality. Various directives added by mod_python (`PythonHandler`, `PythonPath`, `PythonOutputFilter`) may be configured in `Directory` sections of `apache::vhost` entries via the `apache::vhost::directories` parameter or by using a standard `file` resource to place configuration files in `$apache::confd_dir`.

RE #168