Add META.json
Checking in changes prior to tagging of version 0.04.

Changelog diff is:

diff --git a/Changes b/Changes
index 2c576ca..b8c7e3f 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,8 @@
 Revision history for IO::File::AtomicChange

+0.04  Wed Jul 24 10:39:00 UTC 2013
+        * No feature change just refine documents.
+
 0.03  Thu Feb  3 10:30:00 UTC 2011
         * check if defined backdup_dir before check existence of target_file.
           (thanks: Ryo Okamoto san)