Checking in changes prior to tagging of version 0.03.

Changelog diff is:

diff --git a/Changes b/Changes
index 269f572..e39aab7 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,10 @@ Revision history for Perl extension Plagger-Plugin-Notify-Slack

 {{$NEXT}}

+0.03 2014-12-12T08:16:26Z
+
+    - Fix typo
+
 0.01 2014-12-12T03:04:04Z

     - original version