[system tests] We need to fix run of rollback tests

[Andrey Sledzinskiy]

FAIL: Rollback automatically ha one controller deployed cluster
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/case.py", line 296, in testng_method_mistake_capture_func
    compatability.capture_type_error(s_func)
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/compatability/exceptions_2_6.py", line 27, in capture_type_error
    func()
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/case.py", line 350, in func
    func(test_case.state.get_state())
  File "/home/jenkins/workspace/6.1.system_test.centos.deploy_neutron_gre.rollback/UPGRADE/fuelweb_test/helpers/decorators.py", line 68, in wrapper
    return func(*args, **kwargs)
  File "/home/jenkins/workspace/6.1.system_test.centos.deploy_neutron_gre.rollback/UPGRADE/fuelweb_test/tests/test_upgrade.py", line 547, in rollback_automatically_delete_node
    rollback=True, exit_code=255)
  File "/home/jenkins/workspace/6.1.system_test.centos.deploy_neutron_gre.rollback/UPGRADE/fuelweb_test/__init__.py", line 48, in wrapped
    result = func(*args, **kwargs)
  File "/home/jenkins/workspace/6.1.system_test.centos.deploy_neutron_gre.rollback/UPGRADE/fuelweb_test/helpers/checkers.py", line 331, in run_script
    ''.join(stderr)))
AssertionError: Upgrade script fails with next message which: no virtualenv in (/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin)
usage: fuel-upgrade [-h] --src SRC [--no-checker] [--no-rollback]
                    [--password PASSWORD]
                    {openstack,docker,docker-init,raise-error,host-system}
                    [{openstack,docker,docker-init,raise-error,host-system} ...]
fuel-upgrade: error: argument systems: invalid choice: 'bootstrap' (choose from 'openstack', 'docker', 'docker-init', 'raise-error', 'host-system')

Seems that there is no such upgrader 'bootstrap' so we need to modify this command - https://github.com/stackforge/fuel-qa/blob/master/fuelweb_test/helpers/checkers.py#L324

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/176681

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/176681
Committed: https://git.openstack.org/cgit/stackforge/fuel-qa/commit/?id=3d3d07c8b30248c3f9d3034e0009b109708e44a8
Submitter: Jenkins
Branch: master

commit 3d3d07c8b30248c3f9d3034e0009b109708e44a8
Author: asledzinskiy <email address hidden>
Date: Thu Apr 23 12:40:09 2015 +0300

    Fix rollback tests run

    - Bootstrap and targetimages upgraders were removed so
    rollback run was modified accrodingly

    Change-Id: I55dd5dfce16b5bb296bf15f7b4682c62284eabdb
    Closes-Bug: #1447514