[libsigc++2] 2.5.3

[Murray Cumming <murrayc src gnome org>]

commit 9d897741630f5abe0095ed00f0c1fd8ed08fa685
Author: Murray Cumming <murrayc murrayc com>
Date:   Sat Aug 29 17:51:25 2015 +0200

    2.5.3

 NEWS         |    6 ++++++
 configure.ac |    2 +-
 2 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index f6f576d..16ef295 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,9 @@
+2.5.3 (unstable):
+
+* Use C++11 "using" aliases to simplify code that uses type traits.
+  (Murray Cumming) Bug #753580
+
+
 2.5.2 (unstable):
 
 * Remove useless headers:
diff --git a/configure.ac b/configure.ac
index 1b8448a..23dbe7c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -15,7 +15,7 @@
 ## You should have received a copy of the GNU Lesser General Public License
 ## along with this library.  If not, see <http://www.gnu.org/licenses/>.
 
-AC_INIT([libsigc++], [2.5.2],
+AC_INIT([libsigc++], [2.5.3],
         [http://bugzilla.gnome.org/enter_bug.cgi?product=libsigc%2B%2B],
         [libsigc++], [http://libsigc.sourceforge.net/])
 AC_PREREQ([2.59])