[UI][EDP][Doc] Add EDP job examples for dashboard to dashboard user guide

[Chad Roberts]

Currently, the documentation in the Sahara dashboard user guide talks about the use of the dashboard's various pieces individually, but lacks a concrete example that would help tie it all together.

Ideally, the documentation would cover how to run the job examples given in the sahara-extra repository from within the Sahara dashboard.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/124440

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/124440
Committed: https://git.openstack.org/cgit/openstack/sahara/commit/?id=b3ef8c3dfb17bb39d8fe0ffa60eaa28eb2c9cd71
Submitter: Jenkins
Branch: master

commit b3ef8c3dfb17bb39d8fe0ffa60eaa28eb2c9cd71
Author: Chad Roberts <email address hidden>
Date: Fri Sep 26 11:18:15 2014 -0400

    Adding job execution examples to UI user guide

    Adding examples for a Pig job and a Spark job to
    the Sahara UI user guide. The examples referenced
    are the ones from the Sahara repository /etc/edp-examples
    directory. Also, removed language that referred to the
    "Sahara" dashboard that formerly existed as a separate
    entity. The updated version references the "Data Processing"
    panel where it now lives (under Project).

    Change-Id: If83cdef109a4356fdb2db4487cde4e76d7d280a8
    Closes-Bug: #1288914