[wing] Post release version bump

[Ignacio Casal Quinteiro <icq src gnome org>]

commit b993c473b823a30b34b0543f164305fd3fafebb1
Author: Ignacio Casal Quinteiro <qignacio amazon com>
Date:   Thu Mar 26 13:42:55 2020 +0100

    Post release version bump

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index afe564e..6dfa93c 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('wing', 'c',
-        version: '0.3.0',
+        version: '0.3.1',
         default_options: [
           'buildtype=debugoptimized',
           'warning_level=2'