Checking in changes prior to tagging of version 0.17.

Changelog diff is:

diff --git a/Changes b/Changes
index 4c4dd37..c6b77d5 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,12 @@ Revision history for Perl extension Caroline

 {{$NEXT}}

+0.17 2013-09-09T07:37:23Z
+
+    - Detect ambw's width by Unicode::EastAsianWidth::Detect.
+      https://github.com/tokuhirom/Caroline/issues/9
+      (Reported by disarmer++, implemented by mattn++)
+
 0.16 2013-08-24T08:28:22Z

     - Load IO::Handle to call STDOUT->autoflush.