- RTP ports used for voice and video communication can span a wide range
of ports. Some servers seem to restrict the range. However, repro
does not seem to do that. So, open up the full range.
The Service object now offers handling services on a system level,
and gathering information whether it's enabled or running.
New methods: enable, disable, is_enabled, is_running;
For this it needs the correct (system-level) service name.
All of the methods can be overridden/customized.
This changes all modules to the new Service object and deletes
action scripts that are not required anymore.
