[evince] build: Bump required GTK+ version

[Yosef Or Boczko <yoseforb src gnome org>]

commit 18ecf7f7fadb551d01cb5042cda1beb9400fa13f
Author: Yosef Or Boczko <yoseforb src gnome org>
Date:   Tue Sep 23 22:18:06 2014 +0300

    build: Bump required GTK+ version
    
    For the new API for handling RTL icons.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=737211

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 2bfeb8c..6555a5e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -118,7 +118,7 @@ dnl Specify required versions of dependencies
 CAIRO_REQUIRED=1.10.0
 GLIB_REQUIRED=2.36.0
 LIBSECRET_REQUIRED=0.5
-GTK_REQUIRED=3.12.0
+GTK_REQUIRED=3.13.4
 NAUTILUS_REQUIRED=2.91.4
 
 AC_SUBST([GLIB_REQUIRED])