[gnome-panel] bump version to 3.15.2, update NEWS

[Alberts Muktupāvels <muktupavels src gnome org>]

commit dfaeedb9e7f4a7bdbac89ddc27ef862a51c1d91a
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Mon Nov 24 06:50:54 2014 +0200

    bump version to 3.15.2, update NEWS

 NEWS         |   15 +++++++++++++++
 configure.ac |    4 ++--
 2 files changed, 17 insertions(+), 2 deletions(-)
---
diff --git a/NEWS b/NEWS
index e7a4081..be8b48d 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,18 @@
+Version 3.15.2
+==============
+- Fixed more deprecation warnings (again). (Alberts Muktupāvels)
+- Fixed evolution opening from clock applet. (Alberts Muktupāvels)
+- Stop using GtkPlug/GtkSocket for in process applets. (Alberts Muktupāvels)
+- Applets are build as in process applets. (Alberts Muktupāvels)
+- Don't set background color for GtkMenuBar in panel. It breaks transparent
+  panels. (Alberts Muktupāvels)
+- Fix crash in clock applet. (Alberts Muktupāvels)
+- Use dbus to register with session manager, drop libegg. (Alberts Muktupāvels)
+- Restored ability to have transparent panels. (Alberts Muktupāvels)
+- Updated translations:
+  Milo Casagrande (it), Piotr Drąg (pl), Sweta Kothari (gu), Tiago S (pt),
+  Timo Jyrinki (fi), Tom Tryfonidis (el).
+
 Version 3.14.0
 ==============
 - Fix many deprecation warnings. This affects libpanel-applet, functions for
diff --git a/configure.ac b/configure.ac
index f9b330d..a1f0139 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([gnome-panel], [3.15.0],
+AC_INIT([gnome-panel], [3.15.2],
         [http://bugzilla.gnome.org/enter_bug.cgi?product=gnome-panel])
 AC_CONFIG_HEADERS(config.h)
 AM_INIT_AUTOMAKE([1.11 no-dist-gzip dist-xz tar-ustar -Wno-portability])
@@ -20,7 +20,7 @@ AC_SUBST([LIBPANEL_APPLET_API_VERSION])
 LIBPANEL_APPLET_GIR_VERSION=5_0
 AC_SUBST([LIBPANEL_APPLET_GIR_VERSION])
 
-LIB_PANEL_APPLET_LT_VERSION=0:0:0
+LIB_PANEL_APPLET_LT_VERSION=0:1:0
 AC_SUBST(LIB_PANEL_APPLET_LT_VERSION)
 
 GNOME_MAINTAINER_MODE_DEFINES