Tweaks for release.

Change-Id: Ib7e66ed8c87490ab46944da9cec91a1627b8441f

CHANGELOG

@@ -1,3 +1,13 @@
+2020-01-01 Changes in burp-2.3.20:
+  * 597: Protocol 2 - prune the sparse index.
+  * 800: Correct counters after resume.
+  * 837: Fix bug where user= config causes exit.
+  * Tidy up README.
+  * From Orsiris de Jong:
+    - Add Centos 8 building instructions to README.
+  * From Bob Ryan:
+    - Add smb2 magic id.
+
 2019-12-01 Changes in burp-2.3.18:
   * 30: Add option to take a list of paths for restore.
   * Add '-a p' option, for outputing parseable file lists.

DONATIONS

@@ -7,6 +7,11 @@ me via the website contact page and we can talk about alternatives.
 
 This is the list of donations received to date. Many thanks to all of you.
 
+Donations for 2019-12:
+ *     £100.00 Romain L.
+ *      £20.00 Marcin W.
+ *      £10.00 Norbert H.
+
 Donations for 2019-11:
  *     £100.00 Romain L.
  *      £20.00 Marcin W.

configure.ac

@@ -3,7 +3,7 @@ dnl Process this file with autoconf to produce a configure script.
 dnl require a recent autoconf
 AC_PREREQ([2.61])
 
-AC_INIT([Burp],[2.3.19],[https://github.com/grke/burp/issues],[burp],[http://burp.grke.net/])
+AC_INIT([Burp],[2.3.20],[https://github.com/grke/burp/issues],[burp],[http://burp.grke.net/])
 AC_CONFIG_AUX_DIR([autoconf])
 AC_CONFIG_HEADERS([src/config.h])
 AC_CONFIG_MACRO_DIR([m4])