[gnome-flashback] configure.ac: bump required versions

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 38e817b6948be186fec08444b2143b5c5b03abc7
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sun Oct 26 00:17:21 2014 +0300

    configure.ac: bump required versions

 configure.ac |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 92d3af8..e724ee1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,8 +27,8 @@ IT_PROG_INTLTOOL([0.40.6])
 
 GLIB_GSETTINGS
 
-GTK_REQUIRED=3.10.0
-LIBGNOME_DESKTOP_REQUIRED=3.8.0
+GTK_REQUIRED=3.12.0
+LIBGNOME_DESKTOP_REQUIRED=3.12.0
 CANBERRA_REQUIRED=0.13
 GLIB_REQUIRED=2.39.91
 GSETTINGS_DESKTOP_SCHEMAS_REQUIRED=3.12.0