Checking in changes prior to tagging of version 0.05.

Changelog diff is:

diff --git a/Changes b/Changes
index b7bff46..22f0511 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,7 @@
 Revision history for Perl extension CGI::Header::PSGI.

+0.05  Mar 17th, 2013
+
   - A role CGI::Header::PSGI requires the nph() and server_software() methods
     which are provided by both of CGI.pm and CGI::Simple.
   - Update POD