[clutter] docs: Update the release notes

[Emmanuele Bassi <ebassi src gnome org>]

commit 2aaf359272aa3b7a38e472bed10aff69caa7303b
Author: Emmanuele Bassi <ebassi linux intel com>
Date:   Tue Dec 20 15:59:15 2011 +0000

    docs: Update the release notes

 README.in |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/README.in b/README.in
index ca4b8d6..332f822 100644
--- a/README.in
+++ b/README.in
@@ -289,6 +289,17 @@ features).
 Release Notes for Clutter 1.10
 -------------------------------------------------------------------------------
 
+â ClutterBox and ClutterGroup have been deprecated. ClutterActor should be
+  used directly, instead.
+
+â ClutterContainer provides default implementations for add(), remove(),
+  and foreach(); this means that overriding these methods is now deprecated,
+  and that developers should only implement ClutterContainer for classes
+  providing child properties.
+
+â ClutterActor is not an abstract type any more, and can be instantiated
+  either through clutter_actor_new() or through g_object_new().
+
 â ClutterActor now implements ClutterContainer, and takes over the entire API
   for modifying the scene graph; this means that every actor can have children
   and it's not necessary any more to implement the ClutterContainer interface.