Checking in changes prior to tagging of version 0.20.

Changelog diff is:

diff --git a/Changes b/Changes
index 644bbf0..a50395d 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,8 @@ Revision history for this perl module

 {{$NEXT}}

+0.20 2014-02-05T14:30:37Z
+
   - Merging a Minilla and Mist managed source directory now also uses
 	  the MPAN distributions from the other dist