[epiphany] configure.ac: bump GTK+ version

[Diego Escalante Urrelo <diegoe src gnome org>]

commit e83ffcbfd4b18db6187fa7e2bd11940c3c451071
Author: Diego Escalante Urrelo <descalante igalia com>
Date:   Thu Dec 16 00:13:58 2010 -0500

    configure.ac: bump GTK+ version
    
    Required for GtkStyleContext API.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index c081f4c..f750287 100644
--- a/configure.ac
+++ b/configure.ac
@@ -93,7 +93,7 @@ if test "$enable_maintainer_mode" = "yes"; then
 fi
 
 GLIB_REQUIRED=2.25.13
-GTK_REQUIRED=2.91.3
+GTK_REQUIRED=2.91.7
 LIBXML_REQUIRED=2.6.12
 LIBXSLT_REQUIRED=1.1.7
 LIBSTARTUP_NOTIFICATION_REQUIRED=0.5