LeftHand driver does not support snapshots or extend volume

[Kurt Martin]

The LeftHand driver does not support snapshot or extend volume currently. The following feature are part on the minimum driver features that should be implemented in every cinder driver;
create snapshot
delete snapshot
create volume from snapshot
extend volume

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/44151

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/44151
Committed: http://github.com/openstack/cinder/commit/953c9e8a1ce52b181d4489bc50c3e0f7c9b17603
Submitter: Jenkins
Branch: master

commit 953c9e8a1ce52b181d4489bc50c3e0f7c9b17603
Author: Kurt Martin <email address hidden>
Date: Wed Aug 28 14:08:49 2013 -0700

    Add missing LH SAN driver features for Havana

    The LeftHand driver did not support snapshot or extend volume.
    The following features are part of the minimum driver features
    that should be implemented in every cinder driver. This patch
    adds the following missing features;
    create snapshot
    delete snapshot
    create volume from snapshot
    extend volume
    It also fixes the DocStrings in the unit test so they pass the
    checks.

    Change-Id: Icda790fcddf4ea11782a8d6ec57b1e8f871eb167
    Fixes: bug 1217118