Checking in changes prior to tagging of version 0.04.

Changelog diff is:

diff --git a/Changes b/Changes
index 55d0b8f..dd2f46d 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,11 @@ Revision history for Perl extension Cwd::Guard

 {{$NEXT}}

+0.04 2013-06-03T02:04:02Z
+
+        - use fchdir when available (ap++)
+          It's reliable and faster (http://linux.die.net/man/3/getcwd)
+
 0.03 2013-05-24T00:37:42Z

         - fix packaging issue. remove Makefile.PL