Checking in changes prior to tagging of version 0.04.

Changelog diff is:

diff --git a/Changes b/Changes
index 29f004a..dcc5592 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,11 @@ Revision history for Perl extension Text-Markdown-Hoedown

 {{$NEXT}}

+0.04 2013-09-30T11:03:15Z
+
+    - CONST() macro conflict with MinGW.
+      (reported by mattn++)
+
 0.03 2013-09-30T09:19:31Z

     - Custom handler support(Not documented yet).