Add 'fuel2 release component list' command

[OpenStack Infra]

https://review.openstack.org/354113
Dear bug triager. This bug was created since a commit was marked with DOCIMPACT.

commit 02b666940b361d9dd0747d4c44907d407232d022
Author: tivaliy <email address hidden>
Date: Mon Jul 11 07:33:26 2016 +0300

    Add 'fuel2 release component list' command

    In Nailgun there is an API call for getting JSON data
    of compatible components for release and all plugins
    releated with it (GET /api/v1/releases/<:id>/components/).
    This patch adds new fuel2 command, e.g.:

           fuel2 release component list 1

    This command prints list of components for given Fuel release
    with respective cross-dependencies

    Also contains the following required changes:
     - Ic78845dbde5cef7ba0463a4f8adaca85069bcf61

    DocImpact
    Closes-Bug: 1600501
    Closes-Bug: 1600672

    Change-Id: I4c89a0ca2c606228b9dd35d8c1524bd005f320e7

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/369298

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/369298
Committed: https://git.openstack.org/cgit/openstack/fuel-docs/commit/?id=87b50fe4062cf6bebf016b58eaa5aa9351890de5
Submitter: Jenkins
Branch: master

commit 87b50fe4062cf6bebf016b58eaa5aa9351890de5
Author: Olena Logvinova <email address hidden>
Date: Tue Sep 13 12:46:45 2016 +0300

    [UG] [CLI] Consolidated Fuel CLIs v1 and v2

    This patch:

    - adds a deprecation note for Fuel CLI v1 to the
      Fuel CLI section of the Fuel User Guide;
    - adds a table with consolidated fuel and fuel2
      commands;
    - fixes noticed typos and formatting discrepancies.

    Change-Id: Ibb005e3ecc4d094229f9b7c951a92fe9e5d6574e
    Closes-Bug: #1608883
    Closes-Bug: #1609815
    Closes-Bug: #1619200
    Closes-Bug: #1618873
    Closes-Bug: #1618456
    Closes-Bug: #1612611
    Closes-Bug: #1612609
    Closes-Bug: #1611835
    Closes-Bug: #1612148
    Closes-Bug: #1612151
    Closes-Bug: #1612218
    Closes-Bug: #1612610
    Closes-Bug: #1612606
    Closes-Bug: #1612607
    Closes-Bug: #1612227
    Closes-Bug: #1621807
    Closes-Bug: #1621838
    Closes-Bug: #1623595
    Closes-Bug: #1612608
    Closes-Bug: #1619290
    Closes-Bug: #1612598
    Closes-Bug: #1624044