Release fonttools version 2.3

git-svn-id: svn://svn.code.sf.net/p/fonttools/code/trunk@579 4cde692c-a291-49d1-8350-778aa11640f8
diff --git a/Doc/changes.txt b/Doc/changes.txt
index 1451bd1..12d4ad7 100644
--- a/Doc/changes.txt
+++ b/Doc/changes.txt
@@ -1,3 +1,10 @@
+TTX/FontTools Version 2.3
+
+- TrueType Collection (TTC) support
+- Python 2.6 support
+- Update Unicode data to 5.2.0
+- Couple of bug fixes
+
 TTX/FontTools Version 2.2
 
 - ClearType support