[tracker] build: Require GLib 2.28 (was 2.26)

[Martyn James Russell <mr src gnome org>]

commit 2b0584ddbeb09d33dffb1a5f19f1d6afc713da5f
Author: Martyn Russell <martyn lanedo com>
Date:   Fri Sep 9 08:58:52 2011 +0100

    build: Require GLib 2.28 (was 2.26)
    
    Recent code uses g_slist_free_full() which is only in 2.28.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 6324c85..ce6fa17 100644
--- a/configure.ac
+++ b/configure.ac
@@ -184,7 +184,7 @@ PYTHON_REQUIRED=2.6
 # Library required versions
 DBUS_REQUIRED=1.3.1
 DBUS_GLIB_REQUIRED=0.82
-GLIB_REQUIRED=2.26.0
+GLIB_REQUIRED=2.28.0
 PANGO_REQUIRED=1.0.0
 GTK_REQUIRED=3.0.0
 LIBXML2_REQUIRED=2.6