[gnome-chess] Bump up gtk version to 3.16.0

[Sahil Sareen <ssareen src gnome org>]

commit f01ac8d15423accdca1c7f1cab79695ecc60db3c
Author: Sahil Sareen <sahil sareen hotmail com>
Date:   Sun Dec 6 13:44:10 2015 +0530

    Bump up gtk version to 3.16.0

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 8b6939c..34f88bf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -22,7 +22,7 @@ dnl Dependencies
 dnl ###########################################################################
 
 GLIB_REQUIRED=2.40
-GTK_REQUIRED=3.15.0
+GTK_REQUIRED=3.16.0
 RSVG_REQUIRED=2.32.0
 
 AC_SUBST([GLIB_REQUIRED])