[glibmm] Gio::Settings: Add get/set_int64().

[Murray Cumming <murrayc src gnome org>]

commit f199b750b2938fe73138c9328396469a7c651462
Author: Murray Cumming <murrayc murrayc com>
Date:   Tue Sep 13 17:02:32 2016 +0200

    Gio::Settings: Add get/set_int64().

 gio/src/settings.hg |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gio/src/settings.hg b/gio/src/settings.hg
index aafa243..d998de5 100644
--- a/gio/src/settings.hg
+++ b/gio/src/settings.hg
@@ -133,6 +133,8 @@ public:
 
   _WRAP_METHOD(int get_int(const Glib::ustring& key) const, g_settings_get_int)
   _WRAP_METHOD(void set_int(const Glib::ustring& key, int value), g_settings_set_int)
+  _WRAP_METHOD(gint64 get_int64(const Glib::ustring& key) const, g_settings_get_int64)
+  _WRAP_METHOD(void set_int64(const Glib::ustring& key, gint64 value), g_settings_set_int64)
   _WRAP_METHOD(guint get_uint(const Glib::ustring& key) const, g_settings_get_uint)
   _WRAP_METHOD(void set_uiint(const Glib::ustring& key, guint value), g_settings_set_uint)
   _WRAP_METHOD(bool get_boolean(const Glib::ustring& key) const, g_settings_get_boolean)