Updated openstack/openstack
Project: openstack/horizon  e7d50f5fa48ec4ef5662ed6880034111f0c8a952
null
Allowing snapshoting attached volume

The cinder api allows calling snapshot on attached volumes,
we should enable it on horizon.

Change-Id: I33d7bbca0bf993ace7c243867aa5f57438a57a5d
Fixes: bug #1202929