[devhelp] bump GTK+ dependency for shortcuts window

[Frederic Peters <fpeters src gnome org>]

commit 7c59ea0f7845338439f8683c17e2ec683f037805
Author: Frédéric Péters <fpeters 0d be>
Date:   Wed Jan 27 15:42:01 2016 +0100

    bump GTK+ dependency for shortcuts window

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 83756f8..e027280 100644
--- a/configure.ac
+++ b/configure.ac
@@ -49,7 +49,7 @@ AC_SUBST(LIBM)
 
 PKG_CHECK_MODULES(DEVHELP, [
   gthread-2.0 >= 2.10.0
-  gtk+-3.0 >= 3.13.4
+  gtk+-3.0 >= 3.19.3
   webkit2gtk-4.0 >= 2.6.0
   gio-2.0 >= 2.37.3
 ])