deploy modules and sites to their respective *-available directory and symlink the, to the appropriate *-enabled - fixes #83

Manage pidfile

Add missing if

Check variables properly

Add postgresql support

Update for logrotate module dependency

Update documentation

Add parameters to freeradius class

to be able to configure the path

This parameter controls whether freeradius module should handle the
creation/mode of log files.

Fix db_dir option of radiusd.conf in debian systems

Remove secret parameter from freeradius::status_server

Fix client template when used from freeradius::statusclient

Config created was not correct because in debian based systems
use paths slightly different than others.

Although it is declared as mandatory, it is not used anywhere.

When the template is used from freeradius::statusclient there are some
parameteres (require_message_authenticator) that are not set, so this condition
must be considered in the template.

Fix freeradius service in debian systems

freeradius init script do have status option in debian systems. Without this modification, freeradius is restarted when a config file is changed, but it not started if it is not running.

Fix freeradius::module::files

Fix freeradius::sql

acctusersfile and preproxy_usersfile should be configured by default as
undef.

* It was checking parameters with the wrong name
* The database driver was not correctly configured in the template