[gnote] Bump required version of Glibmm to 2.32

[Aurimas Černius <aurimasc src gnome org>]

commit f6732911966c34c4d618b1adb9d7a1b49f3b33e5
Author: Aurimas Černius <aurisc4 gmail com>
Date:   Sun Jun 16 20:22:22 2013 +0300

    Bump required version of Glibmm to 2.32
    
    It's an actually required version, needed for app menu.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 12dbf22..c27837c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -25,7 +25,7 @@ dnl all the library version.
 dnl if one is harcoded elsewhere, it is a bug
 
 GTK_VERSION=3.6
-LIBGLIBMM_VERSION=2.28
+LIBGLIBMM_VERSION=2.32
 LIBGTKMM_VERSION=3.6
 GTKSPELL_VERSION=3.0.0
 BOOST_VERSION=1.34