[epiphany] WebKitGTK+ 2.17.4 now required for WebKitOptionMenu

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 3f30e2f1c610e914b4f78135375ce5d71215e50e
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Mon Aug 7 11:48:49 2017 -0500

    WebKitGTK+ 2.17.4 now required for WebKitOptionMenu

 meson.build |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/meson.build b/meson.build
index b915c51..480158e 100644
--- a/meson.build
+++ b/meson.build
@@ -44,7 +44,7 @@ configure_file(
 glib_requirement = '>= 2.52.0'
 gtk_requirement = '>= 3.22.13'
 nettle_requirement = '>= 3.2'
-webkitgtk_requirement = '>= 2.17.3'
+webkitgtk_requirement = '>= 2.17.4'
 
 cairo_dep = dependency('cairo', version: '>= 1.2')
 gcr_dep = dependency('gcr-3', version: '>= 3.5.5')