Update global requirements

Manual push to sync global req.  Just need the setuptools
pin, further detail here: http://goo.gl/c9RmSE

Change-Id: I75e7c8829153e10b81d2ce5dbfca84fdde14a3ff
Implement Huawei SDSHypervisor connector

Huawei SDSHypervisor uses a private key-value data protocal,
so we add a new connector inherited from InitiatorConnector
and implement connect_volume and disconnect_volume.

The connector uses sds_cli cmd to implement attach/detach/querydev vol,
sds_cli will be put to a specific dir and the path is registered as a
system environment variable when sds is installed.

Change-Id: I4fa3306df982347afb5fb8e5d4d14612024b643a
Implements: blueprint huawei-sdshypervisor-driver
Implement Huawei SDSHypervisor driver

It uses socket and CLI to communicate with SDSHypervisor
to perform the following:
* Create/Delete Volume
* Extend Volume
* Create/Delete Snapshot
* Create Volume from Snapshot
* Delete Volume Snapshot
* Attach/Detach Volume
* Get Volume Stats
* Clone Volume

Certification test result for Huawei SDSHypervisor:
https://bugs.launchpad.net/cinder/+bug/1368064

Implements: blueprint huawei-sdshypervisor-driver
Change-Id: Ied72c5568875eae2387cf6271f31ddc5eebcc4bb
Update volume driver for Huawei storage system

This driver is similar to the previous one, but contains
the following differences:
1. Remove smart tier support because that our product does not
   support smart tier any more. 18000 does not support smart
   tier, so this has no problem with 18000 series.
2. Update qos support implementation.
3. Add synchronization because that our tests show that when we
   create volumes or snapshots in batch in a shell script with cli
   command, our array may occur error.
Certification test result for Huawei storage drivers:
https://bugs.launchpad.net/cinder/+bug/1399038

Implements: blueprint huawei-storage-drivers
Change-Id: I69c32ef3225c23881be522eac451b8855805e35d
Add Scality SRB driver

This patch implements the `srb-driver` blueprint. It uses a similar
approach as Ceph's RBD in the way it exposes a block device to the
system.

The driver controls the SRB Linux kernel driver through a sysfs
interface and leverages LVM for snapshot management. The native block
driver talks to Scality's storage system (or any other vendor exposing
a compatible CDMI interface) through a HTTP-based RESTful protocol.

iSCSI export to Nova is provided.

Driver cert results are provided in bug #1400327.

Implements: blueprint srb-driver
See: https://blueprints.launchpad.net/cinder/+spec/srb-driver
Related-Bug: #1400327
See: https://bugs.launchpad.net/cinder/+bug/1400327
Co-Authored-By: Nicolas Trangez <ikke@nicolast.be>
Co-Authored-By: JordanP <jordan.pittier@scality.com>
Change-Id: Id8d00df9db4004d5aeb8c0269d114ef50e0b8f8e
Fibrechannel and iSCSI for Violin Memory 6000 Series Arrays

This patch adds both Fibrechannel and iSCSI driver support for Violin
Memory 6000 Series All-Flash Arrays.

Certification results posted at:
https://bugs.launchpad.net/cinder/+bug/1399911

Change-Id: I9f62fe79e892cff01abdb02dbd95be8e432f8ab7
Implements: blueprint violinmemory-v6000-storage-drivers
Merge "Add Scality SRB driver"
Merge "Fibrechannel and iSCSI for Violin Memory 6000 Series Arrays"
Merge "Implement Huawei SDSHypervisor connector"
Merge "Implement Huawei SDSHypervisor driver"
Merge "Update global requirements"