[gnome-continuous] manifest: update webkitgtk4 to 2.7.91

[Vadim Rutkovsky <vrutkovsky src gnome org>]

commit 0c33013e172d13a7985f455130747ee6a74aa5c8
Author: Vadim Rutkovsky <vrutkovs redhat com>
Date:   Tue Mar 3 17:00:19 2015 +0100

    manifest: update webkitgtk4 to 2.7.91

 manifest.json |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/manifest.json b/manifest.json
index ae98aa7..1a53ddf 100644
--- a/manifest.json
+++ b/manifest.json
@@ -761,9 +761,9 @@
                                 "--enable-debug-symbols=min",
                                 "--disable-maintainer-mode"]},
 
-               {"src": "tarball:http://www.webkitgtk.org/releases/webkitgtk-2.7.3.tar.xz";,
+               {"src": "tarball:http://www.webkitgtk.org/releases/webkitgtk-2.7.91.tar.xz";,
                 "name": "webkitgtk4",
-                "checksum": "06243dfda689e83d170a31d6ea288f51790ddc596faa8a6b44f464006528b7f8",
+                "checksum": "9d2b70a0dba6e2b6f74b82b2ceb92605921ecf0a554633ed98bc277c55b091e1",
                 "patches": ["webkitgtk-cmake-buildapi.patch"]},
 
                {"src": "gnome:libgee",