Checking in changes prior to tagging of version 0.04.

Changelog diff is:

diff --git a/Changes b/Changes
index 86a0381..9037612 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,8 @@ Revision history for Perl extension Algorithm-SAT-Backtracking

 {{$NEXT}}

+0.04 2014-12-07T16:50:57Z
+
     - replacing Logical Defined-Or for legacy perl support

 0.03 2014-12-04T14:31:08Z