[gnome-tweak-tool] Use the new org.gnome.desktop.calendar schema

[Rui Matos <rtcm src gnome org>]

commit f6d4cc2d9e86c27641bcfb4a0ceaaac418fa6f99
Author: Iain Lane <iain orangesquash org uk>
Date:   Thu May 12 12:33:05 2016 +0100

    Use the new org.gnome.desktop.calendar schema
    
    The old one is going away as it is now shared by Shell and Calendar.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=766319

 configure.ac                       |    2 +-
 gtweak/tweaks/tweak_group_shell.py |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 99cf79b..f166ed6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -7,7 +7,7 @@ AC_CONFIG_MACRO_DIR([m4])
 AM_PATH_PYTHON([2.6])
 GLIB_GSETTINGS
 
-DESKTOP_SCHEMAS_REQUIRED_VERSION=3.4.0
+DESKTOP_SCHEMAS_REQUIRED_VERSION=3.21.2
 GTK_REQUIRED_VERSION=3.12.0
 PYGOBJECT_REQUIRED_VERSION=3.2.1
 
diff --git a/gtweak/tweaks/tweak_group_shell.py b/gtweak/tweaks/tweak_group_shell.py
index 557746f..822d231 100644
--- a/gtweak/tweaks/tweak_group_shell.py
+++ b/gtweak/tweaks/tweak_group_shell.py
@@ -105,7 +105,7 @@ TWEAK_GROUPS = [
         GSettingsCheckTweak(_("Show date"),"org.gnome.desktop.interface", "clock-show-date", 
schema_filename="org.gnome.desktop.interface.gschema.xml"),
         GSettingsCheckTweak(_("Show seconds"), "org.gnome.desktop.interface", "clock-show-seconds", 
schema_filename="org.gnome.desktop.interface.gschema.xml"),
         Title(_("Calendar"),""),
-        GSettingsCheckTweak(_("Show week numbers"),"org.gnome.shell.calendar", "show-weekdate", 
schema_filename="org.gnome.shell.gschema.xml", loaded=_shell_loaded),
+        GSettingsCheckTweak(_("Show week numbers"),"org.gnome.desktop.calendar", "show-weekdate", 
schema_filename="org.gnome.desktop.calendar.gschema.xml"),
     ),
     ListBoxTweakGroup(TWEAK_GROUP_POWER,
         Title(_("When Power Button is Pressed"), "", uid="title-theme"),