[gtkmm] Increase version to match (branched) release

[Murray Cumming <murrayc src gnome org>]

commit 22747e1595fee160219ef104c02bedb61a3cbef5
Author: Murray Cumming <murrayc murrayc com>
Date:   Thu Oct 21 15:18:09 2010 +0200

    Increase version to match (branched) release

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 7710ca3..2d3b9a9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -15,7 +15,7 @@
 ## You should have received a copy of the GNU Lesser General Public License
 ## along with this library.  If not, see <http://www.gnu.org/licenses/>.
 
-AC_INIT([gtkmm], [2.91.1],
+AC_INIT([gtkmm], [2.91.1.1],
         [http://bugzilla.gnome.org/enter_bug.cgi?product=gtkmm],
         [gtkmm], [http://www.gtkmm.org/])
 AC_PREREQ([2.59])