Document changes and release 1:90.0~b2-1

debian/changelog

+thunderbird (1:90.0~b2-1) experimental; urgency=medium
+
+  [ Carsten Schoenert ]
+  * [3cc0d66] d/source.filter: some updates to filtering list
+  * [3c76a94] New upstream version 90.0~b2
+  * [46718fe] rebuild patch queue from patch-queue branch
+    removed patches:
+    fixes/reduce-the-rust-debuginfo-level-on-selected-architectures.patch
+    debian-hacks/Work-around-Debian-bug-844357.patch
+  * [156d3c9] d/thunderbird.1: Correct debugger option
+  * [ca7daca] /u/l/thunderbird: Correct escape sequencing for gdb calling
+    (Closes: #976979)
+  * [f310330] d/thunderbird-wrapper.sh: Use '${}' syntax for variables
+  * [0ef3788] d/thunderbird.install: Remove gtk2 cruft
+  * [17b0510] d/copyright: Update due removed content
+  * [feca305] d/s/lintian-override: Remove two no longer existing entries
+
+  [ Kevin Locke ]
+  * [dbe3c3e] d/thunderbird-wrapper.sh: Make gdb call more fail safe
+    (Closes:#942799)
+
+ -- Carsten Schoenert <c.schoenert@t-online.de>  Sun, 20 Jun 2021 14:51:49 +0200
+
 thunderbird (1:89.0~b2-1) experimental; urgency=medium
 
   * [74911c7] New upstream version 89.0~b2