Move OVO exceptions to neutron-lib

[John Perkins]

Move OVO exceptions to neutron-lib/exceptions

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/357776

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/357787

[OpenStack Infra (hudson-openstack)]

Change abandoned by John Perkins (<email address hidden>) on branch: master
Review: https://review.openstack.org/357776
Reason: Not ready for this yet as per Ihar: will reopen when sure that API and behavior is not going to change drastically.

[John Perkins (john-d-perkins-deactivatedaccount)]

Moving the exceptions to neutron/objects/exceptions.py rather than neutron-lib. We will make the final move to neutron-lib when we are sure that API and behavior is not going to change drastically.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/357787
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=0a27cf7fd66f5a21c76bd85311072b684903fe79
Submitter: Jenkins
Branch: master

commit 0a27cf7fd66f5a21c76bd85311072b684903fe79
Author: John Perkins <email address hidden>
Date: Fri Aug 19 12:13:47 2016 +0100

    Move OVO exceptions to neutron/objects/exceptions

    Change-Id: Ibf424b4e317e910e33c29fb9ec150452caa06a89
    Partial-Bug: #1614920

[Rodolfo Alonso (rodolfo-alonso-hernandez)]

I'll close this bug due to the lack of activity. If any exception in Neutron needs to be rehomed to n-lib, a new bug will be opened.