hypervisor-show can't use cell format id to show hypervisor

[Chung Chih, Hung]

This bug was occurred in cell mode.

In cell mode, compute node's id was not identified by integer type. It was formatted with "path!to!cell@ID".
Therefore we can't using the id of hypervisor-list output.

For example,
> nova hypervisor-list
+----------------+--------------------------+-------+---------+
| ID | Hypervisor hostname | State | Status |
+----------------+--------------------------+-------+---------+
| region!child@1 | vagrant-ubuntu-trusty-64 | up | enabled |
+----------------+--------------------------+-------+---------+

But we can still using hostname to show hypervisor.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/203416

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/203416
Committed: https://git.openstack.org/cgit/openstack/python-novaclient/commit/?id=c3a0c035dc6bd4676805d0618dfe334ed2d81228
Submitter: Jenkins
Branch: master

commit c3a0c035dc6bd4676805d0618dfe334ed2d81228
Author: Chung Chih, Hung <email address hidden>
Date: Sun Jul 19 18:31:45 2015 +0800

    hypervisor command can't use cell format id to show hypervisor

    This bug was occurred in cell mode.

    In cell mode, compute node's id was not identified by integer type. It
    was formatted with "path!to!cell@ID".
    Therefore we can't using the id of hypervisor-list output.

    For example,
    > nova hypervisor-list
    +----------------+--------------------------+-------+---------+
    | ID | Hypervisor hostname | State | Status |
    +----------------+--------------------------+-------+---------+
    | region!child@1 | vagrant-ubuntu-trusty-64 | up | enabled |
    +----------------+--------------------------+-------+---------+

    Change-Id: Iba0cc1993f67351b11d034f372d7a5b98dc017f0
    Closes-Bug: 1475973