Add link to dev-manual-devstack.rst into document dev-quickstart.rst

[P Rivera]

In the document doc/source/dev/dev-quickstart.rst there is presently no existing link to the setup Magnum with devstack document located at:
https://github.com/openstack/magnum/blob/master/doc/source/dev/dev-manual-devstack.rst

Inclusion of this link pertaining to key configuration would most likely be of tremendous benefit to all developers. Lack of inclusion, however, presently hampers development activities.

Inclusion to dev-quickstart should begin around line 120 (of document http://git.openstack.org/cgit/openstack/magnum/tree/doc/source/dev/dev-quickstart.rst).

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/189584

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/192057

[OpenStack Infra (hudson-openstack)]

Change abandoned by Davanum Srinivas (dims) (<email address hidden>) on branch: master
Review: https://review.openstack.org/192057

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/189584
Committed: https://git.openstack.org/cgit/openstack/magnum/commit/?id=660efe1fd4a7ea3cd24af839cc5741c7149f4307
Submitter: Jenkins
Branch: master

commit 660efe1fd4a7ea3cd24af839cc5741c7149f4307
Author: Perry Rivera <email address hidden>
Date: Tue Jun 9 00:50:35 2015 -0700

    Add manual links into dev-quickstart.rst

    Documentation lines of document dev-quickstart.rst
    were clarified with a link to the manual setup guide

    Closes-Bug: #1451678
    Change-Id: I64c06c4eb6d29b9694d325a8362e6e4812cbfc90