Checking in changes prior to tagging of version 0.24.

Changelog diff is:

diff --git a/Changes b/Changes
index 1ec249e..bbca8f1 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,9 @@
 Revision history for Perl extension Test::Pretty

+0.24 2013-02-16T22:43:03
+
+    - Do not colorize on non terminal output.
+
 0.23 2013-02-15T19:52:51

     - Do not pass when unexpected exit