Checking in changes prior to tagging of version 0.03.

Changelog diff is:

diff --git a/Changes b/Changes
index 7f47173..bb17c96 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,9 @@ Revision history for Perl extension APNS-Agent

 {{$NEXT}}

+0.03 2014-03-01T12:47:11Z
+    - add `send_interval` option
+
 0.02 2014-01-12T04:26:12Z

     - fix test case