[gnome-sdk-images/gnome-3-20] update to latest gtk3

[Alexander Larsson <alexl src gnome org>]

commit ebfdfd6558d68624639cf91ceb0335c7e5197ebf
Author: Alexander Larsson <alexl redhat com>
Date:   Tue May 24 16:56:51 2016 +0200

    update to latest gtk3

 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 55cd331..2718626 100644
--- a/org.gnome.Sdk.json.in
+++ b/org.gnome.Sdk.json.in
@@ -325,8 +325,8 @@
             "sources": [
                 {
                     "type": "archive",
-                    "url": "https://download.gnome.org/sources/gtk+/3.20/gtk+-3.20.5.tar.xz";,
-                    "sha256": "9790b0267384904ad8a08e7f16e5f9ff1c4037de57788d48d1eaf528355b1564"
+                    "url": "https://download.gnome.org/sources/gtk+/3.20/gtk+-3.20.6.tar.xz";,
+                    "sha256": "3f8016563a96b1cfef4ac9e795647f6316deb2978ff939b19e4e4f8f936fa4b2"
                 }
             ]
         },