[libwnck] release: post-release bump to 3.1.91

[Vincent Untz <vuntz src gnome org>]

commit 642cb6b8fab72dd06719b2b121fb33e137edf0e0
Author: Vincent Untz <vuntz gnome org>
Date:   Wed Aug 31 10:43:56 2011 +0200

    release: post-release bump to 3.1.91

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 45ef915..ca1a7d8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@ AC_PREREQ(2.62)
 
 m4_define([wnck_major_version], [3])
 m4_define([wnck_minor_version], [1])
-m4_define([wnck_micro_version], [90])
+m4_define([wnck_micro_version], [91])
 m4_define([wnck_version],
           [wnck_major_version.wnck_minor_version.wnck_micro_version])