ttrss: Use the apache component to restart apache on config change

Tests:

- Install version 5 of ttrss app. Update to version 6. Notice that apache is
reloaded.

Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>
Reviewed-by: James Valleroy <jvalleroy@mailbox.org>

plinth/modules/ttrss/__init__.py

@@ -78,7 +78,8 @@ class TTRSSApp(app_module.App):
         self.add(firewall)
 
         webserver = Webserver('webserver-ttrss', 'tt-rss-plinth',
-                              urls=['https://{host}/tt-rss'])
+                              urls=['https://{host}/tt-rss'],
+                              last_updated_version=5)
         self.add(webserver)
 
         daemon = Daemon('daemon-ttrss', 'tt-rss')

plinth/modules/ttrss/privileged.py

@@ -81,8 +81,6 @@ def setup():
 
     if action_utils.service_is_enabled('tt-rss'):
         action_utils.service_restart('tt-rss')
-        # Accommodate changes in Apache configuration file.
-        action_utils.service_reload('apache2')
 
 
 @privileged