Release balsa-2.5.10

ChangeLog

+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

NEWS

+* 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.

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

meson.build

 project('balsa', 'c',
-        version         : '2.5.9',
+        version         : '2.5.10',
         meson_version   : '>= 0.50.0',
         default_options : ['sysconfdir=/etc', 'optimization=2'])