Adds envdir.pl
Checking in changes prior to tagging of version 0.04.

Changelog diff is:

diff --git a/Changes b/Changes
index 357f931..8b78f18 100644
--- a/Changes
+++ b/Changes
@@ -1,6 +1,8 @@
 Revision history for Perl extension EnvDir

 {{$NEXT}}
+
+0.04 2013-07-18T12:59:30Z
     - Changes the behavior of reading file that filesize equals zero.
     - Adds envdir.pl