[glibmm] 2.51.1

[Murray Cumming <murrayc src gnome org>]

commit 1b31d7f1d96c3606fe82bd5e1ea182d0d2d3bb3e
Author: Murray Cumming <murrayc murrayc com>
Date:   Wed Nov 23 10:38:47 2016 +0100

    2.51.1

 NEWS |   32 ++++++++++++++++++++++++++++++++
 1 files changed, 32 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index cdad141..fa3d1d0 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,35 @@
+2.51.1:
+
+This is the first release of the glibmm-2.52 API/ABI.
+It installs in parallel with the gtkmm-2.4 API/ABI, of which
+the most recent version is glibmm 2.50. We know that is a bit
+confusing. We are taking the opportunity to do this glibmm ABI
+break while GTK+ (and therefore gtkmm) is also doing an ABI
+break. But we cannot call this glibmm-3.0 because there is no
+glib 3.0.
+
+Build:
+* Require C++14.
+  (Murray Cumming)
+* Use libsigc++-3.0 instead of libsigc++-2.0.
+  https://www.murrayc.com/permalink/2016/03/07/libsigc-3-0-very-variadic/
+  (Murray Cumming)
+* Remove lots of deprecated API.
+  (Kjell Ahlstedt)
+
+Gio:
+* BufferedInputStream, InputStream, OutputStream: Add vfuncs,
+  allowing implementation in C++.
+  (Krzysztof Kosiński, Kjell Ahlstedt) Bug #572471
+* SettingsSchemaSource::get_default(): Correct the reference count.
+  (Marcin Kolny) Bug #774593
+* Settings: Fix type of 'key' parameter of writable-change-event signal
+  (Marcin Kolny) Bug #773977
+
+Glib:
+* ustring: Add cbegin() and cend().
+
+
 2.50.0:
 
 No changes since 2.49.7.