Checking in changes prior to tagging of version 0.04.

Changelog diff is:

diff --git a/Changes b/Changes
index 67bdb0d..3ead4de 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,11 @@ Revision history for Perl extension OrePAN2

 {{$NEXT}}

+0.04 2013-05-23T04:55:27Z
+
+    - orepan2-indexer supports --text option for non-gzip-ed index file.
+      (tokuhirom)
+
 0.03 2013-05-19T22:30:11Z

     - Support plain text index generation on library interface.