Checking in changes prior to tagging of version 0.16.

Changelog diff is:

diff --git a/Changes b/Changes
index 1514fe9..b41d9e9 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,12 @@
 Revision history for Perl extension WWW::GoKGS.

+0.16 Jun 30th, 2014
+
+  [INTERNAL]
+
+    - Simplify the BEGIN block of WWW::GoKGS
+    - Rewrite tests under xt/ using Test::Base
+
 0.15 Jun 29th, 2014

   [INCOMPATIBLE CHANGES]