Release v21.16 to unstable

Signed-off-by: James Valleroy <jvalleroy@mailbox.org>

debian/changelog

@@ -1,3 +1,58 @@
+freedombox (21.16) unstable; urgency=medium
+
+  [ Burak Yavuz ]
+  * Translated using Weblate (Turkish)
+
+  [ Johannes Keyser ]
+  * Translated using Weblate (German)
+
+  [ Joseph Nuthalapati ]
+  * tests: Fix app name in pytest.skip statement
+  * cockpit: Make 'name' optional in Signal handlers
+  * ejabberd: Make name option in Signal handlers
+  * tests: functional: Skip MLDonkey app
+  * monkeysphere: Drop app as it is not being used
+  * diaspora: Drop app that was never finished.
+  * tahoe-lafs: Drop app as it is not being used
+
+  [ Sunil Mohan Adapa ]
+  * roundcube: Allow upgrades using configuration file prompts
+  * letsencrypt: Handle cert setup when an app wants all domains
+  * email_server: Include postfix package in packages list
+  * email_server: Fix issue with handling domain removal
+  * email_server: Re-implement TLS configuration
+  * email_server: Adjust TLS configuration parameters
+  * email_server: Rename dovecot TLS configuration file for consistency
+  * datetime: Fix checking when timesyncd will run on a system
+
+  [ Coucouf ]
+  * Translated using Weblate (French)
+
+  [ Eric ]
+  * Translated using Weblate (Chinese (Simplified))
+  * Translated using Weblate (Chinese (Simplified))
+
+  [ Jiří Podhorecký ]
+  * Translated using Weblate (Czech)
+  * Translated using Weblate (Czech)
+
+  [ pesder ]
+  * Translated using Weblate (Chinese (Traditional))
+  * Translated using Weblate (Chinese (Traditional))
+
+  [ Michael Breidenbach ]
+  * Translated using Weblate (Swedish)
+
+  [ James Valleroy ]
+  * upgrades: Refactor dist upgrade process
+  * upgrades: Cleanup dist upgrade steps specific to bullseye release
+  * upgrades: Add type annotations to action
+  * pyproject: Add domain marker
+  * locale: Update translation strings
+  * doc: Fetch latest manual
+
+ -- James Valleroy <jvalleroy@mailbox.org>  Mon, 20 Dec 2021 20:58:00 -0500
+
 freedombox (21.15) unstable; urgency=medium
 
   [ trendspotter ]

plinth/__init__.py

@@ -3,4 +3,4 @@
 Package init file.
 """
 
-__version__ = '21.15'
+__version__ = '21.16'