[gtk-web] Add 2.18 release notes

[Matthias Clasen <matthiasc src gnome org>]

commit 29d9a2b0883beda0555f4d3ea8e7cf7693f1d234
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Sep 23 00:27:33 2009 -0400

    Add 2.18 release notes

 notes/gtk-2.18.0-notes.txt |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)
---
diff --git a/notes/gtk-2.18.0-notes.txt b/notes/gtk-2.18.0-notes.txt
new file mode 100644
index 0000000..a52c799
--- /dev/null
+++ b/notes/gtk-2.18.0-notes.txt
@@ -0,0 +1,16 @@
+Release notes for 2.18
+======================
+
+* gtk_tooltip_set_custom now accept a NULL custom_widget to unset the
+  old custom_widget. Custom_widget does not get destroyed when the
+  tooltip goes away.
+
+* JPEG2000 support is no longer enabled by default. It must be
+  explicitly turned on, by passing --with-libjasper to configure.
+
+* GDK has been reworked to implement 'client-side windows'. This offers
+  exciting new possibilities, such as transformed, offscreen rendering,
+  but it breaks some long-standing assumptions that applications may
+  have about GDK windows. Setting the environment variable
+  GDK_NATIVE_WINDOWS makes GDK create a native X11 window for each
+  GDK window, which might make problematic applications work better.