Add versioning output for the FC Zone Manager

This patch adds log output of the version
information for the Fibre Channel Zone Manager
and it's drivers during volume manager start up.

Change-Id: I7de5159782315f528a25ffdf69a59caebcc46ee7
Closes-Bug: #1284362
gpfs volume driver backup file access fixes

Changes to volume file permission settings require a temporary
chown to the file being backed up.

Also, use gpfs file clone copy mechanism to create a consistent
file copy so that the TSM backup service can create a hard link
to the clone file.

Closes-bug: 1286924

Change-Id: I951ab16788277d0052d1845fad963e9e4cdbc53e
Fix HP LeftHand migration with snapshots

Check for snapshots associated with volumes during assisted
migration, and fail if a snapshot is found.

When a volume is cloned on the HP LeftHand array, a snapshot
is created and the cloned volume is created from the snapshot.
The snapshot remains associated with the newly created volume.
Therefore, backend assisted migration should check for volumes
with snapshots and not use native APIs to migrate any volume
that has a snapshot.

Change-Id: I29fc3dbd1f24c01968e7c3d043cdf6b9d1b89ee9
Closes-Bug:#1285829
Add initiator_target_map for IBM Storwize/SVC

Basic support to return a map of all initiator to all targets.
Updated unit test.

Change-Id: I886dd63021130003b1b2dd391542fb2b41b9d51f
Closes-Bug: #1287476
remove _check_container_exists from Swift backup driver

The HTTP PUT on a Swift container is idempotent, we don't need to
check if it exists before uploading a backup.

This fixes a side issue where swiftclient was printing a TRACE of
the failed HTTP HEAD, previously in use to check if the container
existed.

Change-Id: I7bc267c948b56e30658997a9743f0d46ebb362ab
Merge "Add initiator_target_map for IBM Storwize/SVC"
Merge "gpfs volume driver backup file access fixes"
Merge "Add versioning output for the FC Zone Manager"
Merge "remove _check_container_exists from Swift backup driver"
Merge "Fix HP LeftHand migration with snapshots"
(Test commit) Change README to reflect Jio's fork of Cinder

Change-Id: I3f26c0a736e63725aec24ca2fa12c707b8e6460f