[pygtk] Update NEWS, release 2.15.1

[Gian Mario Tagliaretti <gianmt src gnome org>]

commit 2c0ba86924b6fa86ab48a3bcd1f33f717c886164
Author: Gian Mario Tagliaretti <gianmt gnome org>
Date:   Mon May 25 00:22:54 2009 +0200

    Update NEWS, release 2.15.1
---
 NEWS |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/NEWS b/NEWS
index 52db05b..bb78a0c 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,19 @@
+pygtk-2.15.1 25-May-2009
+    - (Add HSV support to gtk.gdk.Color objects)
+    - Add floating-point support to gtk.gdk.Color (Paul)
+    - Retire hand-written ChangeLog; autocreate from Git history (Paul)
+    - Fix conditional in docs/Makefile.am (Frederic Peters)
+    - Document that gtk.gdk.GC coordinates are not related to allocation (Paul)
+    - Make pygtk_boxed_unref_shared() also handle Py_None (Paul)
+    - Make gtk.MenuItem.set_submenu accept None (Paul)
+    - Don't run 'fixxref.py' if documentation is not built (Björn Lindqvist)
+    - Apply libtool 2.2 compatibility patch (Gian)
+    - Plug reference leak on main signal watch source (Paul)
+    - Add extra warning against accidental misuse of tree model columns (Paul)
+    - Wrap gtk.Border attributes and constructor (Mariano Suárez-Alvarez)
+    - Make gtk.gdk.Event.time accept 'long' in assignments (Paul)
+    - Wrap gtk.RcStyle attributes (Paul)
+
 pygtk-2.15.0 01-May-2009
     - Update pygtk to use numpy instead of Numeric
       (Josselin Mouette, Brian Cameron, #397544)