Checking in changes prior to tagging of version 0.12.

Changelog diff is:

diff --git a/Changes b/Changes
index 4d8647f..66c50ae 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,9 @@ Revision history for Perl extension Module-Build-XSHelper

 {{$NEXT}}

+0.12 2014-08-02T13:57:10Z
+    - Add C++11 support
+
 0.11_01 2014-06-14T14:36:33Z
     - Add diag message for test