Checking in changes prior to tagging of version 0.23.

Changelog diff is:

diff --git a/Changes b/Changes
index 345ec0f..9c13722 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,10 @@ Revision history for Perl extension Cinnamon

 {{$NEXT}}

+0.23 2013-07-06T06:19:48Z
+    - fix bug to run task on same host, when concurrency running
+    - fix bug to misunderstand the result of running command on local
+
 0.22 2013-05-25T05:41:30Z
     - fix to handle \r\n in output correctly.  Thanks to yteraoka.