add missing changelog bits

debian/changelog

@@ -5,6 +5,11 @@ monkeysign (2.1.1) unstable; urgency=medium
   * add monkeysign-doc to Suggests
   * remove obsolete BUILD_TIMESTAMP, especially now that the manpage
     generation was rewritten without timestamps
+  * improve release process and install documentation, remove presentation
+  * forgot to close a bunch of issues in 2.1.0 release:
+    * Monkeyscan fails at launch (Closes: #773970)
+    * expiry date in epoch time is not human readable (Closes: #760139)
+    * make builds reproducible (Closes: #784602)
 
  -- Antoine Beaupré <anarcat@debian.org>  Wed, 28 Sep 2016 08:18:24 -0400