Services-show on empty environment failed

[Ekaterina Chernova]

Empty body of the *response* has to be also handled:

* $ murano environment-create dummy
+----------------------------------+-------+---------------------+---------------------+
| ID | Name | Created | Updated |
+----------------------------------+-------+---------------------+---------------------+
| db98819a639b4235b401763c3f8c3d81 | dummy | 2015-02-25T09:21:38 | 2015-02-25T09:21:38 |
+----------------------------------+-------+---------------------+---------------------+

* $ murano service-show db98819a639b4235b401763c3f8c3d81 /
'list' object has no attribute 'items'

The reason is that muranoclient/common/http.py json_request(..) return None on the empty list of env's services.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/164750

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/164750
Committed: https://git.openstack.org/cgit/stackforge/python-muranoclient/commit/?id=b6e43ca7b615927a0eec4f8a45b4687e27efd073
Submitter: Jenkins
Branch: master

commit b6e43ca7b615927a0eec4f8a45b4687e27efd073
Author: Ekaterina Chernova <email address hidden>
Date: Mon Mar 16 18:48:44 2015 +0300

    Fix service-show command

    In case no services are exist, command failed to execute.
    Now, path parameter is optional and whithout it
    all services in the environment are shown.

    Change-Id: I81112315fce1937d94bc0772e1b695c2d815c639
    Closes-Bug: #1432568

[Ekaterina Chernova (efedorova)]

https://review.openstack.org/#/c/164750/