[gtk+] Update NEWS for GtkInfoBar

[Matthias Clasen <matthiasc src gnome org>]

commit 8da1c40d72a0fa7b68d241ac34fee6786dae073f
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jun 5 15:01:00 2009 -0400

    Update NEWS for GtkInfoBar
---
 NEWS |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/NEWS b/NEWS
index 1c76e9a..7363803 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,18 @@
+Overview of Changes from GTK+ 2.17.1 to 2.17.2
+==============================================
+
+* GtkInfoBar: A new widget to show a transient 'message area'
+  inside a content pane. The API is similar to GtkDialog and
+  supports theming for different message types (warnings,
+  errors, etc)
+
+* Changes that are relevant for theme authors:
+ - The new GtkInfoBar widget uses symbolic colors for theming
+   its background color depending on the message type. By default,
+   it uses the same background color as tooltips. This can be turned
+   off with style property.
+
+
 Overview of Changes from GTK+ 2.17.0 to 2.17.1
 ==============================================