[libsigc++2] 2.5.2

[Murray Cumming <murrayc src gnome org>]

commit 3d54e1c22cdf7743d797e178802267fce370feeb
Author: Murray Cumming <murrayc murrayc com>
Date:   Thu Aug 13 11:12:26 2015 +0200

    2.5.2

 NEWS         |   31 +++++++++++++++++++++++++++++++
 configure.ac |    2 +-
 2 files changed, 32 insertions(+), 1 deletions(-)
---
diff --git a/NEWS b/NEWS
index 0118327..f6f576d 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,34 @@
+2.5.2 (unstable):
+
+* Remove useless headers:
+    sigc++/class_slot.h
+    sigc++/hide.h
+    sigc++/method_slot.h
+    sigc++/object.h
+    sigc++/object_slot.h
+    sigc++/retype.h
+  Some of these still have equivalents in sigc++/adaptors/
+  (Kjell Ahlstedt, Murray Cumming) Bug #752560
+* C++11: Replace deprecated std::auto_ptr by std::unique_ptr.
+  (Kjell Ahlstedt)
+* C++11: Use std::is_base_of<> instead of our sigc::is_base_and_derived<>,
+  removing sigc::is_base_and_derived<>.
+  (Kjell Ahlstedt, Murray Cumming) Bug #752560
+* C++11: Use of range-based for loops.
+  (Murray Cumming)
+* C++11: Use of the auto keyword.
+  (Murray Cumming)
+* C++11: Use of nullptr instead of 0.
+  (Murray Cumming)
+* sigc++/slot.h: Use a regular .h file instead of generating it
+  from an .m4 file. Bug #752560
+  (Kjell Ahlstedt)
+* Visual Studio Builds: Move 2010 Projects to 2012 to support C++11.
+  (Chun-wei Fan)
+* Use -Wformat-security and -Wshadow with --enable-warnings=fatal.
+  (Murray Cumming)
+
+
 2.5.1 (unstable):
 
 * Use (and require) C++11
diff --git a/configure.ac b/configure.ac
index 91158be..1b8448a 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++], [2.5.1],
+AC_INIT([libsigc++], [2.5.2],
         [http://bugzilla.gnome.org/enter_bug.cgi?product=libsigc%2B%2B],
         [libsigc++], [http://libsigc.sourceforge.net/])
 AC_PREREQ([2.59])