Fix typos in the volumes and snapshots docstrings

Change-Id: I0e4f3813b8e263ea59e182db153c5b4c6fd2a177
Fix type-delete to allow deletion by name and ID

This change addresses bug #1286314, fixing type deletion to allow
deletion by either volume type name or ID. The former implementation
only accepted the volume type ID. Help documentation is also updated
to reflect this change.

Change-Id: I0fc66b54a7bcfa4e00a4d136ac513fa40e628dd2
Closes-Bug: #1286314
DocImpact
Update doc string for service disable

It should be "Disable" but not "Enable" in doc string when disable
a service.

Change-Id: I658090d4e218222c76947c37f340fb2ab7d26ce3
Update service function name for service enable

When testing the function of enabling a service, the function name
should be test_service_enable.

Change-Id: I951c94315392834250183e0219b32804e5d2de66
Import access module from keystoneclient to handle V3 endpoints

* service_catalog.py will be used only by nova(cinder.py), it will be removed if nova
uses access instead of service_catalog. Then service_catalog.py and
test_service_catalog.py will be removed from cinderclient if necessary.

* Some unit tests are modified.

* Because of JSON format's modification, functions that process cinder
credentials and cinder endpoints are changed.

* Add dependency for keystoneclient in requirements.txt.

Change-Id: Icf7badfdddcf5f55536d95db7242aff58aa34b6e
Closes-Bug: #1263876
bp: service-catalog
Client support for export and import backup service metadata

Add client code to a new admin API for backup-export and
backup-import allowing an admin to copy the backup metadata
details.

client code for https://review.openstack.org/#/c/69351/

blueprint cinder-backup-recover-api
DocImpact new admin API calls backup-import and backup-export

Change-Id: Id306fc9cf562a87bb6a36eae692852eefc592b74
Merge "Client support for export and import backup service metadata"
Updated from global requirements

Change-Id: Ib0922bbc1be3c8f738e547fe54a080036b072cdd
Merge "Update doc string for service disable"
Merge "Import access module from keystoneclient to handle V3 endpoints"
Merge "Update service function name for service enable"