[glib] Bump version to 2.51.0

[Simon McVittie <smcv src gnome org>]

commit 6ab68e96685f8bef95d67cec140653fd69d46c40
Author: Simon McVittie <simon mcvittie collabora co uk>
Date:   Thu Oct 13 12:52:17 2016 +0100

    Bump version to 2.51.0
    
    So that we don't get "deprecation" (availability) warnings for
    new functionality of GLib 2.51/2.52.
    
    Signed-off-by: Simon McVittie <simon mcvittie collabora co uk>
    Reviewed-by: Colin Walters <walters verbum org>

 configure.ac |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 91a9755..737e5e3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -30,9 +30,9 @@ m4_define(glib_configure_ac)
 # <mclasen> on the unstable (ie master), interface age = 0
 
 m4_define([glib_major_version], [2])
-m4_define([glib_minor_version], [50])
-m4_define([glib_micro_version], [1])
-m4_define([glib_interface_age], [1])
+m4_define([glib_minor_version], [51])
+m4_define([glib_micro_version], [0])
+m4_define([glib_interface_age], [0])
 m4_define([glib_binary_age],
           [m4_eval(100 * glib_minor_version + glib_micro_version)])
 m4_define([glib_version],