Checking in changes prior to tagging of version 0.03.

Changelog diff is:

diff --git a/Changes b/Changes
index 4d70ceb..0f53f29 100644
--- a/Changes
+++ b/Changes
@@ -1,6 +1,8 @@
 Revision history for Perl extension Graphviz::DSL

 {{$NEXT}}
+
+0.03 2013-06-04T13:46:50Z
         - Convert to Minilla
         - Document update
         - Update sample program