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

Fix freeradius::listen

The type Freeradius::Listen_type does not exists. It is an enumerate of
valid listen type

Fix template for freeradius::site

It fails when you use freeradius::site listen parameter

Add a more exhaustive list of parameters to ldap

This is a function related with the configuration of a freeradius, so
I move it to a "module" namespace.
freeradius::ldap remains available, but with a warning message.

Fix for freeradius::module::eap

It is used in freeradius::module::eap definition (and could be used in more places). This type is equal to an integer or a string starting with '$' (to be able to use variable references)

Add freeradius::module::files

to configure files module

Fix an errata and tabulation of the template