update-master-node.sh doesn't handle errors in deploy.sh

[Dmitry Burmistrov]

Detailed bug description:
 "update-master-node.sh" script (https://github.com/openstack/fuel-library/blob/stable/mitaka/files/updates/update-master-node.sh) for MU mechanism for 9.X is not handling errors in "deploy.sh" script (https://github.com/openstack/fuel-library/blob/stable/mitaka/files/updates/update-master-node.sh#L16 - bash -x /etc/puppet/modules/fuel/examples/deploy.sh).
 As "set -e" is not set in "update-master-node.sh" script execution will ignore errors and continue. But "deploy.sh" script will fail in some cases (and do not apply other modulars) - https://github.com/openstack/fuel-library/blob/stable/mitaka/deployment/puppet/fuel/examples/deploy.sh#L47
 This will cause service restarts without proper configuration and user may not notice problem.
 9.0/9.1 releases
Description of the environment:
 Operation system: Ubuntu 14.04

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/mitaka
Review: https://review.openstack.org/360443

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/360443
Committed: https://git.openstack.org/cgit/openstack/fuel-library/commit/?id=b6697d87dfef73fa96aa16f02eac140d85f44b02
Submitter: Jenkins
Branch: stable/mitaka

commit b6697d87dfef73fa96aa16f02eac140d85f44b02
Author: dmburmistrov <email address hidden>
Date: Thu Aug 25 13:51:14 2016 +0300

    Fix MU update master node script

    Key moments:
    * fail "update-master-node.sh" execution on any error
    * reload systemd units after package upgrade
    * print current update "stage"
    * small refactoring (comments, quotes, etc)

    Closes-bug: #1616472
    Closes-bug: #1616393

    Change-Id: I105c16e313a47908bd90a51f6557498735aa8a42

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/358682
Committed: https://git.openstack.org/cgit/openstack/fuel-library/commit/?id=66229fdf424971cf20f95e34d4873f92da38387b
Submitter: Jenkins
Branch: master

commit 66229fdf424971cf20f95e34d4873f92da38387b
Author: Oleksiy Molchanov <email address hidden>
Date: Fri Jul 22 19:34:50 2016 +0300

    Add update-master-node script

    This script updates master node in fuel 9.x releases.
    It upgrades system packages, runs fuel/examples/deploy.sh
    as for boostrap admin node process (puppet tasks run),
    then restarts all important master node services.
    Logging for this script is also added.

    Closes-bug: #1605602

    Related-bug: #1616472
    Related-bug: #1616393

    Change-Id: Ic4ef722b861d260c3679dca9c74f6cc62052c376