[gnome-sdk-images/gnome-3-20] Update webkit to 2.12.1

[Alexander Larsson <alexl src gnome org>]

commit d3a35762382b0b0f74b4e1c6015ed5bde0043908
Author: Alexander Larsson <alexl redhat com>
Date:   Wed May 11 09:53:27 2016 +0200

    Update webkit to 2.12.1

 org.gnome.Sdk.json.in |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/org.gnome.Sdk.json.in b/org.gnome.Sdk.json.in
index f06bd80..35a3b6c 100644
--- a/org.gnome.Sdk.json.in
+++ b/org.gnome.Sdk.json.in
@@ -677,8 +677,8 @@
            "sources": [
                 {
                     "type": "archive",
-                    "url": "http://www.webkitgtk.org/releases/webkitgtk-2.12.0.tar.xz";,
-                    "sha256": "a68604f8fd1bcb247d647709290226289b90c16acb1f3730538b688db8df5ea6"
+                    "url": "http://www.webkitgtk.org/releases/webkitgtk-2.12.1.tar.xz";,
+                    "sha256": "5b1a2d5227553f3cecbdb258c68b384f9235747b2c07c15afb555fe4fa6ae896"
                 },
                 {
                     "type": "patch",