[evolution] Post-release version bump

[Milan Crha <mcrha src gnome org>]

commit 6ba1988ce12d17df116cd289aeef1f516df09d39
Author: Milan Crha <mcrha redhat com>
Date:   Mon Feb 4 10:13:55 2019 +0100

    Post-release version bump

 CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 585fcddf7b..7d518befcb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,7 @@ cmake_minimum_required(VERSION 3.1)
 cmake_policy(VERSION 3.1)
 
 project(evolution
-       VERSION 3.31.90
+       VERSION 3.31.91
        LANGUAGES C)
 set(PROJECT_BUGREPORT "https://gitlab.gnome.org/GNOME/evolution/issues/";)
 set(PROJECT_URL "http://wiki.gnome.org/Apps/Evolution/";)