Release v19.4 to experimental

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

debian/changelog

@@ -1,3 +1,45 @@
+plinth (19.4) experimental; urgency=medium
+
+  [ Allan Nordhøy ]
+  * Translated using Weblate (Norwegian Bokmål)
+
+  [ Pavel Borecki ]
+  * Translated using Weblate (Czech)
+
+  [ nautilusx ]
+  * Translated using Weblate (German)
+
+  [ Doma Gergő ]
+  * Translated using Weblate (Hungarian)
+
+  [ advocatux ]
+  * Translated using Weblate (Spanish)
+
+  [ Joseph Nuthalapati ]
+  * clients: Open web app in a new browser tab
+  * matrix-synapse: Change client diagnostics url
+  * minetest: Fix duplicate domain names being displayed in UI
+  * storage: Do not show an eject button on /boot partitions
+  * letsencrypt: Call letsencrypt manage_hooks with correct arguments
+  * vagrant: Run plinth as user plinth in development environment
+
+  [ Johannes Keyser ]
+  * Translated using Weblate (German)
+
+  [ James Valleroy ]
+  * dynamicdns: Install module by default
+  * locale: Update strings
+  * doc: Fetch latest manual
+
+  [ Sunil Mohan Adapa ]
+  * storage: Don't check type of the disk for / and /boot
+  * storage: Don't log error when checking if partition is expandable
+
+  [ wind ]
+  * Translated using Weblate (Russian)
+
+ -- James Valleroy <jvalleroy@mailbox.org>  Mon, 01 Apr 2019 20:31:54 -0400
+
 plinth (19.3) experimental; urgency=medium
 
   [ Pavel Borecki ]

plinth/__init__.py

@@ -18,4 +18,4 @@
 Package init file.
 """
 
-__version__ = '19.3'
+__version__ = '19.4'