[murano-apps][kubernetes] Docker GuestBook application failed to deploy

[Victor Ryzhenkin]

Steps:
1. Add Docker GuestBook application to environment
2. Deploy environment

Actual result:
Got an error: [exceptions.TypeError]: can only concatenate list (not "NoneType") to list

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/182155

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/182155
Committed: https://git.openstack.org/cgit/openstack/murano-apps/commit/?id=2a0483586291e516202b47fb632361d8567ad2f3
Submitter: Jenkins
Branch: master

commit 2a0483586291e516202b47fb632361d8567ad2f3
Author: Dmytro Dovbii <email address hidden>
Date: Tue May 12 08:00:48 2015 +0300

    Fix GuestBook app

    * Fixed name of variable in DockerApplication
    class
    * Changed creating instance of RedisSlave class

    Change-Id: I2e57e0719d6c17b9f4dea3516c508b0a23242cab
    Closes-Bug: #1446245

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/kilo
Review: https://review.openstack.org/189296

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/189296
Committed: https://git.openstack.org/cgit/openstack/murano-apps/commit/?id=38b9edac72757c3b408459bf09cb10eee08dd87f
Submitter: Jenkins
Branch: stable/kilo

commit 38b9edac72757c3b408459bf09cb10eee08dd87f
Author: Dmytro Dovbii <email address hidden>
Date: Tue May 12 08:00:48 2015 +0300

    Fix GuestBook app

    * Fixed name of variable in DockerApplication
    class
    * Changed creating instance of RedisSlave class

    Change-Id: I2e57e0719d6c17b9f4dea3516c508b0a23242cab
    Closes-Bug: #1446245
    (cherry picked from commit 2a0483586291e516202b47fb632361d8567ad2f3)