[libwnck] Release: post-release bump to 3.31.1

[Marco Trevisan <marcotrevi src gnome org>]

commit f0054714eb9cc924979a361b1c0935f80e7a6718
Author: Marco Trevisan (Treviño) <mail 3v1n0 net>
Date:   Tue Nov 6 21:30:26 2018 -0600

    Release: post-release bump to 3.31.1

 configure.ac | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index a0a8888..2707d1d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,8 +1,8 @@
 AC_PREREQ(2.62)
 
 m4_define([wnck_major_version], [3])
-m4_define([wnck_minor_version], [30])
-m4_define([wnck_micro_version], [0])
+m4_define([wnck_minor_version], [31])
+m4_define([wnck_micro_version], [1])
 m4_define([wnck_version],
           [wnck_major_version.wnck_minor_version.wnck_micro_version])