[control-center] Update minimum gtk+ and gsettings-desktop-schemas versions

[Kalev Lember]

commit 3a2182ba1524e38b2b2417651a29662bb0ad604d
Author: Kalev Lember <kalevlember at gmail.com>
Date:   Sat Feb 21 19:37:32 2015 +0100

    Update minimum gtk+ and gsettings-desktop-schemas versions

 control-center.spec | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/control-center.spec b/control-center.spec
index b7bce41..56bbbad 100644
--- a/control-center.spec
+++ b/control-center.spec
@@ -1,10 +1,10 @@
 %define gettext_package gnome-control-center-2.0
 
 %define glib2_version 2.39.91
-%define gtk3_version 3.13.0
+%define gtk3_version 3.15.0
 %define gsd_version 3.7.3
 %define gnome_desktop_version 3.11.3
-%define gsettings_desktop_schemas_version 3.13.91
+%define gsettings_desktop_schemas_version 3.15.4
 %define desktop_file_utils_version 0.9
 
 Summary: Utilities to configure the GNOME desktop