Some API docs and manuals gate jobs renaming

This is a first step to reorganize docs' jobs, by renaming and then templatizing them.
This patch only changes some of the openstack manuals' gate jobs to a format like
 'gate-openstack-manuals-{job_name}' and the api gate ones to 'gate-{name}-api-v{version}'

Change-Id: I4082641985ce3574c3d740eb188f68a4f6702314
Reviewed-on: https://review.openstack.org/29037
Reviewed-by: James E. Blair <corvus@inaugust.com>
Reviewed-by: Paul Belanger <paul.belanger@polybeacon.com>
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Approved: Clark Boylan <clark.boylan@gmail.com>
Tested-by: Jenkins
Added additional openstack cookbook repos to gate

Change-Id: I116f6bc42894f608303fc6dee26137b3d107c706
Reviewed-on: https://review.openstack.org/29193
Reviewed-by: Jay Pipes <jaypipes@gmail.com>
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Reviewed-by: Paul Belanger <paul.belanger@polybeacon.com>
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Reviewed-by: James E. Blair <corvus@inaugust.com>
Approved: Clark Boylan <clark.boylan@gmail.com>
Tested-by: Jenkins