[grilo-plugins] Post-release version bump to 0.3.9

[Victor Toso <victortoso src gnome org>]

commit 59e76bc4ae657afff5f0d6c1653dc79188c0181a
Author: Victor Toso <me victortoso com>
Date:   Mon Sep 24 14:43:32 2018 +0200

    Post-release version bump to 0.3.9
    
    Signed-off-by: Victor Toso <victortoso gnome org>

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index 83a83a0..e45c5ab 100644
--- a/meson.build
+++ b/meson.build
@@ -6,7 +6,7 @@
 # Copyright (C) 2016 Igalia S.L. All rights reserved.
 
 project('grilo-plugins', 'c',
-        version: '0.3.8',
+        version: '0.3.9',
         default_options: [
             'buildtype=debugoptimized',
             'c_std=gnu99',