Document changes and release 1:91.0~b3-1

debian/changelog

+thunderbird (1:91.0~b3-1) experimental; urgency=medium
+
+  * [90a153b] New upstream version 91.0~b3
+  * [ada2cf0] d/control: Remove transitional package lightning
+  * [3e5087f] d/control: Remove obsolete lightning-l10-* packages
+  * [6eac520] d/control: Remove Suggests on libgtk2.0-0 fur thunderbird
+    (Closes: #967771)
+
+ -- Carsten Schoenert <c.schoenert@t-online.de>  Sat, 24 Jul 2021 10:37:52 +0200
+
 thunderbird (1:91.0~b1-1) experimental; urgency=medium
 
   * [78f0ddb] d/source.filter: some updates to filtering list