Post release bump version

debian/changelog

@@ -1,3 +1,9 @@
+lubuntu-artwork (0.5) UNRELEASED; urgency=low
+
+  * 
+
+ -- Julien Lavergne <gilir@ubuntu.com>  Tue, 16 Feb 2010 03:06:49 +0100
+
 lubuntu-artwork (0.4) lucid; urgency=low
 
   * debian/links: Add symlink to jpg wallpaper file for backward compatibility.