Checking in changes prior to tagging of version 0.04.

Changelog diff is:

diff --git Changes Changes
index 022512e..bb484a0 100644
--- Changes
+++ Changes
@@ -2,6 +2,10 @@ Revision history for Perl extension PSON

 {{$NEXT}}

+0.04 2014-04-02T12:03:09Z
+
+    - Added 'decode_pson' method.
+
 0.03 2014-04-02T12:01:05Z

     - Support undefined value