[gnome-session] meson: bump to 3.31.4

[Ray Strode <halfline src gnome org>]

commit 462e44d05585024a66c4db16f46318a7c0c1bfff
Author: Ray Strode <rstrode redhat com>
Date:   Mon Jan 7 13:34:54 2019 -0500

    meson: bump to 3.31.4

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index 510ef7e8..c49d584f 100644
--- a/meson.build
+++ b/meson.build
@@ -1,6 +1,6 @@
 project(
   'gnome-session', 'c',
-  version: '3.30.1',
+  version: '3.31.4',
   license: 'GPL2+',
   default_options: 'buildtype=debugoptimized',
   meson_version: '>= 0.43.0'