[balsa] Release balsa-2.5.10

[Pawel Salek <pawels src gnome org>]

commit ac687b19dc4b248d382b4811ff8efd93eae2c9a2
Author: Pawel Salek <pawsa0 gmail com>
Date:   Sat Apr 11 12:37:45 2020 +0200

    Release balsa-2.5.10

 ChangeLog    | 4 ++++
 NEWS         | 8 ++++++++
 configure.ac | 4 ++--
 meson.build  | 2 +-
 4 files changed, 15 insertions(+), 3 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 79331d013..e3d10e360 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2020-04-11  Pawel Salek  <pawsa0 gmail com>
+
+       * NEWS, configure.ac, meson.build: release balsa-2.5.10
+
 2020-03-09  Peter Bloomfield  <pbloomfield bellsouth net>
 
        Drop LibBalsaMailbox:is_directory
diff --git a/NEWS b/NEWS
index 2aa425cfa..7add6bf76 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,11 @@
+* Balsa-2.5.10 release. Release date 2020-04-11
+
+- set message threading correctly on new mailboxes.
+- display S/MIME and TLS certificate chains
+- improve handling of multipart/related message parts
+- display text/calendar parts using ical library
+- multiple bug fixes and code cleanups; remove obsolete command line options.
+
 * Balsa-2.5.9 release. Release date 2019-10-19
 
 - fix HTML message layout issues.
diff --git a/configure.ac b/configure.ac
index b726df685..425de5ea0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -8,9 +8,9 @@ dnl ###########################################################################
 dnl Boilerplace and versioning
 dnl ###########################################################################
 
-# if autoconf is used not in a git source tree, use version=2.5.9
+# if autoconf is used not in a git source tree, use version=2.5.10
 AC_INIT([balsa],
-        m4_esyscmd([test -d .git && echo -n `git describe --tags` || echo -n 2.5.9]),
+        m4_esyscmd([test -d .git && echo -n `git describe --tags` || echo -n 2.5.10]),
         [])
 
 AM_INIT_AUTOMAKE
diff --git a/meson.build b/meson.build
index 6cb6731c4..48545e3aa 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('balsa', 'c',
-        version         : '2.5.9',
+        version         : '2.5.10',
         meson_version   : '>= 0.50.0',
         default_options : ['sysconfdir=/etc', 'optimization=2'])