Missing documentation for plugins

[Thai Tran]

We have great architecture for plugins, but no documentation on how to actually do it.

[Rob Cresswell (robcresswell-deactivatedaccount)]

Patch doesn't appear to have been linked by infra https://review.openstack.org/#/c/233709/

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/244407

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/233709
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=15c7b03d06b206d98c8e79a8fa77b183956bc514
Submitter: Jenkins
Branch: master

commit 15c7b03d06b206d98c8e79a8fa77b183956bc514
Author: Thai Tran <email address hidden>
Date: Mon Jan 25 12:32:39 2016 -0800

    Plugin Docs

    Added tutorial folder for future tutorials.
    Added tutorial for creating and installing plugins.
    Moved dashboard tutorial into tutorial folder.

    Change-Id: I17c1ff279b47292d723c100b580667418aa05636
    Closes-Bug: #1511593

[Doug Hellmann (doug-hellmann)]

This issue was fixed in the openstack/horizon 9.0.0.0b3 development milestone.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/244407
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=421cdbce249feabf7e28e1c1bd0aebfcfd9b543d
Submitter: Jenkins
Branch: master

commit 421cdbce249feabf7e28e1c1bd0aebfcfd9b543d
Author: Thai Tran <email address hidden>
Date: Thu Feb 18 12:01:04 2016 -0800

    Tutorial for extending a workflow

    Added tutorial for extending an existing workflow as a plugin.

    Change-Id: I8e6af24b9d1dfe313e6ee6d43894d87d9c97068
    Closes-Bug: #1511593

[Davanum Srinivas (DIMS) (dims-v)]

This issue was fixed in the openstack/horizon 10.0.0.0b1 development milestone.