DavidBurns adding python changelog

git-svn-id: http://selenium.googlecode.com/svn/trunk/py@18337 07704840-8298-11de-bf8c-fd130f914ac9
diff --git a/CHANGES b/CHANGES
index d1d3fcd..0effbbc 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,4 +1,8 @@
-Selenium 2.27 (yet to be released)
+Selenium 2.28
+* "null" can now be passed to executeScript
+* Add transparent and extended colour keywords to color support module. Fixes issue 4866 
+
+Selenium 2.27
 * Added support for phantomjs / ghostdriver
 * Fix python client, avoid duplicate chrome option items after reusing options class. Fixes Issue 4744.
 * adding colour support to Python. fixes issue 4623