[json-glib] build: Revert the GLib version bump

[Emmanuele Bassi <ebassi src gnome org>]

commit 5e19ed2523441afd12c45a8b3f19d10fc9a37335
Author: Emmanuele Bassi <ebassi linux intel com>
Date:   Mon Aug 2 17:14:52 2010 +0100

    build: Revert the GLib version bump
    
    GIO landed in GLib 2.16, so we don't need the version bump to 2.20.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index f26ca1f..f3559d1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -20,7 +20,7 @@ m4_define([lt_current], [m4_eval(100 * json_minor_version + json_micro_version -
 m4_define([lt_revision], [json_interface_age])
 m4_define([lt_age], [m4_eval(json_binary_age - json_interface_age)])
 
-m4_define([glib_req_version], [2.20])
+m4_define([glib_req_version], [2.16])
 
 AC_PREREQ([2.63])