Checking in changes prior to tagging of version 0.34.

Changelog diff is:

diff --git a/Changes b/Changes
index 06c4171..504f2f3 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,7 @@
 Revision history for Perl extension CGI::Header.

+0.34  Mar 16th, 2013
+
   - Add support for -nph pragma:

       use CGI qw(-nph);