Fix devstack to support the new pulled out swift3

Change-Id: Ia4f5092e666b581aab4af4851c2848e84817c07a
diff --git a/stackrc b/stackrc
index 41a399a..98e6bd4 100644
--- a/stackrc
+++ b/stackrc
@@ -16,6 +16,9 @@
 # storage service
 SWIFT_REPO=https://github.com/openstack/swift.git
 SWIFT_BRANCH=master
+SWIFT3_REPO=https://github.com/fujita/swift3.git
+SWIFT3_BRANCH=master
+
 
 # image catalog service
 GLANCE_REPO=https://github.com/openstack/glance.git