Comment 9 for bug 1581361

Reviewed: https://review.openstack.org/395450
Committed: https://git.openstack.org/cgit/openstack/networking-midonet/commit/?id=3dfc497daf26f5b8ebce6569e72e40371138b0cc
Submitter: Jenkins
Branch: master

commit 3dfc497daf26f5b8ebce6569e72e40371138b0cc
Author: YAMAMOTO Takashi <email address hidden>
Date: Wed Nov 9 16:51:22 2016 +0900

    Use some definitions from neutron-lib

    The following two unrelated changes are combined
    into this single commit to pass the gate.

    -------------------------------

    Use some definitions from neutron-lib

    Including:
        - convert_to_boolean
        - PORT_STATUS_ACTIVE
        - TAP_DEVICE_PREFIX
        - db_api.get_engine

    Closes-Bug: #1640319
    Closes-Bug: #1641481
    Closes-Bug: #1641494
    Partial-Bug: #1581361

    -------------------------------

    l3_db_midonet: Update after the recent Neutron change. [1]

    [1] I93e4d847f96707b17c4a7dfdb3bbf81d062fe3fb

    Closes-Bug: #1643747
    Related-Bug: #1540844

    -------------------------------

    Change-Id: Ide96124c12c993a3ee0f2353c8201da9a6b5890c