vmware: Use SessionIsActive to find stale session

An API invocation with a stale session returns an empty response. In order
to distinguish it from an API returning valid empty response, the session
is recreated and the API is retried. If an empty response is received even
after the retry, it can be assumed that the API response is actually empty.
But this behavior results in authentication error from the VMware server
when there is an active session and the API response is actually empty.
This change fix this behavior by using the SessionIsActive check to
identify stale session.

Change-Id: I6ddc4028bc5319cd22006de0590c13d6868c3494
Closes-Bug: #1284979
Import request_id middleware bug fix from oslo

There is a bug in request-id middleware that a subsequent API request
will overwrite a request-id of a previous request when multiple API
calls are processed in parallel in request_id middleware. The fix is
a drop-in replacement; cinder code does not need to be modified to
use the updated request_id middleware.

oslo change to fix the middleware:
d7bd9dc37ac3d6bc171cd2e290c772633ad20a32

Closes-Bug: #1289696
Change-Id: Ib211318c47681f841bcde04e490ccc2070bdf8de
Pass the mirrorlog option as two arguments.

We don't use shell=True when we Popen, so we have to keep all
arguments as separate values.

Change-Id: Ic35fad36be72386d3496920e259c32fe16625046
Closes-bug: 1298017
Update config generator from OSLO

Cinders sample config is out of date with recent
updates needed for keystone, however we had an
old version of the oslo generator so there was
no way to pick these changes up locally by running
the generate tool.

This pulls the latest generator.py from oslo, and
we run the update script to get us back in sync.

Current head of oslo:
  commit 2eab986ef3c43f8d1e25065e3cbc1307860c25c7
  Merge: 2b08343 0dbcae1
  Author: Jenkins <jenkins@review.openstack.org>
  Date:   Wed Mar 26 14:47:07 2014 +0000

      Merge "Adds test condition in test_periodic"

Change-Id: Id43becfaa39d04153167e592a1233a5aef6016c9
Fixes a problem in attach volume in EMC driver.

This patch fixes a problem in attach volume in EMC SMI-S driver.
The existing logic checks if a volume is already attached to any host,
but it doesn't check whether a volume is already attached to the specific
host that nova wants cinder to attach.  As a result, initialize_connection
could return success (thinking it is already attached), but nova will
fail to discover the LUN later and fail the attach.

This patch adds a check to see if a volume is already attached to a
specific host.  If not, it will do the attach.  The reason that the
volume being attached already could be due to a nova live-migration
use case.  Cinder doesn't support multiple attaches currently, but
allows a volume to be attached multiple times from nova during
live-migration.

Change-Id: I05a2f57cd8708d7fcbe902ec13665a9cfb44db07
Closes-Bug: #1295906
NetApp cmode iscsi: Fix QOS extra spec

This patch fixes the incorrect behavior where the NetApp cmode
iscsi driver will choose to create a volume on a flexVol that has
a QOS policy group that matches the specified QOS policy group
intended for the cinder volume. The correct behavior is to ignore
the QOS policy group of the flexVol and instead assign the QOS policy
group to the newly created cinder volume.

Change-Id: Ibeb8e3b965af8e79d0294c5cf97410da2b44d40c
Partial-Bug: #1288283
NetApp cmode nfs: Fix QOS extra spec

This patch fixes the incorrect behavior where the NetApp cmode
nfs driver will choose to create a volume on a flexVol that has
a QOS policy group that matches the specified QOS policy group
intended for the cinder volume. The correct behavior is to ignore
the QOS policy group of the flexVol and instead assign the QOS policy
group to the newly created cinder volume.

Change-Id: I45d905da2a9a07b3ae8c00a225ab3b7f7ceb12d8
Closes-Bug: #1288283
Changes to correct name of missing NetApp license.

Change to have the NetApp ZAPI error of "SIS clone not licensed"
refer to the correct NetApp license of "FlexClone not licensed".
This code path is encountered when the NetApp 7mode driver uses
the clone interface for snapshotting or cloning.

Change-Id: I3e4d07d38870928a324ad044e03938826b0d0a98
Closes-Bug: #1295349
Merge "Pass the mirrorlog option as two arguments."
Merge "Changes to correct name of missing NetApp license."
Merge "NetApp cmode iscsi: Fix QOS extra spec"
Merge "Fixes a problem in attach volume in EMC driver."
Merge "NetApp cmode nfs: Fix QOS extra spec"
Imported Translations from Transifex

Change-Id: Ibb7c3b8a65f1356a06bcec5d23f03598a9966315
Merge "vmware: Use SessionIsActive to find stale session"
Open Juno development

Bump preversion to 2014.2 to formally open Juno development.
The Icehouse release branch (milestone-proposed) will be cut
from the last commit before this one.

Change-Id: I0296da7e564db58d164d8d867c45959d425dea37
Merge "Open Juno development"
Merge "Import request_id middleware bug fix from oslo"