Update Nova process docs to reflect the current release

[Diana Clarke]

The Nova process docs contain a number of references to Liberty & Mitaka that should be updated to reflect the current release (Newton).

http://docs.openstack.org/developer/nova/process.html

[Markus Zoeller (markus_z) (mzoeller)]

Solving an inconsistency: This bug report has an assignee and it looks
like this will result in a patch. Therefore I switch the status to
"In Progress".
Dear assignee, please provide a patch in the next 2 weeks. If you stop
working on this report, please remove yourself as assignee and switch
the status back. If you need assistance, reach out on the IRC channel
#openstack-nova or use the mailing list.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/344448

[Michael Glaser (mikeg451)]

Dates for Newton are past now, will update for Ocata release once dates are available after Barcelona.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Michael Glaser (<email address hidden>) on branch: master
Review: https://review.openstack.org/344448
Reason: Issues resolved via https://review.openstack.org/#/c/404991/ so this change is no longer needed.

[Michael Glaser (mikeg451)]

Changes made via https://review.openstack.org/#/c/404991/ so bug can be closed.

[Anusha Unnam (anusha-unnam)]

Yes this bug is fixed, so marking it as invalid.