repro: Open up RTP ports

- 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.

actions/repro

@@ -58,6 +58,10 @@ def subcommand_setup(_):
     action_utils.service_restart('repro')
     action_utils.webserver_enable('repro-plinth')
 
+    # We have introduced new firewalld service files and wish to use
+    # them.
+    action_utils.service_reload('firewalld')
+
 
 def main():
     """Parse arguments and perform all duties."""

data/usr/lib/firewalld/services/rtp-plinth.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<service>
+  <short>Real-time Transport Protocol</short>
+  <description>RTP is a protocol for delivering real-time data such as audio and video. Enable this if you run an internet telephony server using XMPP, SIP or H.323 and wish to enable audio and video communications.</description>
+  <port protocol="udp" port="1024-65535"/>
+</service>

plinth/modules/repro/__init__.py

@@ -28,7 +28,7 @@ from plinth import frontpage
 from plinth import service as service_module
 from plinth.views import ServiceView
 
-version = 1
+version = 2
 
 depends = ['apps']
 
@@ -69,7 +69,7 @@ def init():
 
     global service
     service = service_module.Service(
-        managed_services[0], title, ports=['sip', 'sips'],
+        managed_services[0], title, ports=['sip', 'sips', 'rtp-plinth'],
         is_external=True, enable=enable, disable=disable)
 
     if service.is_enabled():