Checking in changes prior to tagging of version 0.17.

Changelog diff is:

diff --git a/Changes b/Changes
index b41d9e9..18bcfef 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,14 @@
 Revision history for Perl extension WWW::GoKGS.

+0.17 Jul 2nd, 2014
+
+  - WWW::GoKGS uses HTML::TreeBuilder::LibXML instead of
+    HTML::TreeBuilder when $ENV{WWW_GOKGS_LIBXML} is true
+
+  [INTERNAL]
+
+    - Add tests for HTML::TreeBuilder::LibXML
+
 0.16 Jun 30th, 2014

   [INTERNAL]