Merge 'prefetch-group_by' into 'trunk'

diff --cc Changes
index 470d3db,8fe5fa2..dafb2d5
--- 1/Changes
--- 2/Changes
+++ b/Changes
@@@ -1,6 -1,7 +1,8 @@@
  Revision history for DBIx::Class
  
+         - Fix distinct => 1 with non-selecting order_by (the columns
+           in order_by also need to be aded to the resulting group_by)
 +        - Do not attempt to deploy FK constraints pointing to a View
  
  0.08114 2009-11-14 17:45:00 (UTC)
          - Preliminary support for MSSQL via DBD::ADO