Comment 8 for bug 1561942

Reviewed: https://review.openstack.org/306544
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=3ac1f844d6cf41e9a6d99d4f5ebbe9ba611f1120
Submitter: Jenkins
Branch: stable/mitaka

commit 3ac1f844d6cf41e9a6d99d4f5ebbe9ba611f1120
Author: Roman Prykhodchenko <email address hidden>
Date: Wed Apr 6 12:44:14 2016 +0200

    Do not check deleted tasks before deployment

    After soft deletion was introduced for tasks the task
    manager's logic of telling whether there are any in-progress
    tasks for a specific clusters got wrong.

    This patch changes TaskCollection to not take deleted
    tasks into account.

    Closes-bug: #1561942
    Change-Id: Iafacba2acd80cc32a514ef337ddd39699820c4ab