Checking in changes prior to tagging of version 0.04.

Changelog diff is:

diff --git a/Changes b/Changes
index b831a41..da61b6d 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,8 @@
 Revision history for Plack::Middleware::Image::Dummy

+0.04    Thu Jan 22 19:41:11 2013
+    - Add Imager::File::(PNG|JPEG) to dependent modules
+
 0.03    Thu Jan 20 12:25:57 2013
     - Change color format from #RRGGBB to RRGGBB
     - Fix typo