Checking in changes prior to tagging of version 0.03.

Changelog diff is:

diff --git a/Changes b/Changes
index 8161ac9..edea63c 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,10 @@ Revision history for Perl extension Gearman-Starter

 {{$NEXT}}

+0.03 2014-07-10T10:17:58Z
+
+    - add `on_fail` constructor option (hisaichi5518++)
+
 0.02 2014-01-06T10:15:46Z

     - add missing shebang to gearman-starter.pl