'dockerctl build all' command should be more verbose

[Maksim Malchuk]

During the Fuel master node installation the process looks like hangs when the command 'dockerctl build all' issued.
This is because the command runs in the background and all its output will be shown only after it finished, even if it falls during build and run only one of the containers in the list.

[Maksim Malchuk (mmalchuk)]

Another bugs:
https://bugs.launchpad.net/fuel/+bug/1524558
https://bugs.launchpad.net/fuel/+bug/1496042
depends on this one.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/261062
Committed: https://git.openstack.org/cgit/openstack/fuel-library/commit/?id=a8a752103daf7dd475754ab9122cc6fd38278c28
Submitter: Jenkins
Branch: master

commit a8a752103daf7dd475754ab9122cc6fd38278c28
Author: Maksim Malchuk <email address hidden>
Date: Wed Dec 23 20:24:13 2015 +0300

    Debug and Notice messages during Fuel master start

    Instead of running 'dockerctl build all' command in the background
    and long wait for a debug output we've split the command to build
    each container one by one, but keep the original order. Doing this,
    we have much more information what is going on.

    Also this commit adds some important message to the log which used
    as an anchor for VirtualBox scripts.

    Change-Id: I77a1d3a32633390c1fe37bbeb81da5d0996972df
    Partial-Bug: #1496042
    Closes-Bug: #1529467

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/8.0
Review: https://review.openstack.org/262437

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/262437
Committed: https://git.openstack.org/cgit/openstack/fuel-library/commit/?id=9a80d32c64512fcd52fac24bae9b10513999d2b6
Submitter: Jenkins
Branch: stable/8.0

commit 9a80d32c64512fcd52fac24bae9b10513999d2b6
Author: Maksim Malchuk <email address hidden>
Date: Wed Dec 23 20:24:13 2015 +0300

    Debug and Notice messages during Fuel master start

    Instead of running 'dockerctl build all' command in the background
    and long wait for a debug output we've split the command to build
    each container one by one, but keep the original order. Doing this,
    we have much more information what is going on.

    Also this commit adds some important message to the log which used
    as an anchor for VirtualBox scripts.

    Change-Id: I77a1d3a32633390c1fe37bbeb81da5d0996972df
    Partial-Bug: #1496042
    Closes-Bug: #1529467

[Aleksei Stepanov (penguinolog)]

Verified: Debug output presents on fuel-8.0-518-2016-02-03_07-53-27.iso