openstack/openstack-ansible-rabbitmq_server - openstack-ansible-rabbitmq_server - OpenDev: Free Software Needs Free Tools

OpenStack-Infra has requested that lint tests be pipelined into the 'linters'
tox target in order to make more efficient use of nodepool resources.
This patch:
- Ensures that a complete set of lints tests is available in individual
 tox targets.
- Adds a 'linters' target which executes all the other lints tests.
Change-Id: I98feb85a9a3a530f291c50bc46ec9c639327162a

This brings our tox.ini files inline with other OpenStack projects.
Change-Id: I6dd5066b6e6649b1e0ffca22c913fdc776fbc042
Depends-On: I376e51824c46f9b5eb4a4cff01aaa176632087dd
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

Instead of launching two separate build jobs in our CI infrastructure,
one for bashate and one for pep8, launch a single one. While the jobs
are short, the setup of the images takes a long time, so this is
friendlier to our CI infrastructure.
Use the pep8 environment as common lint target and merge the bashate job
into it.
This patch also renamed dev-requirements to test-requirements to bring it
into line with all other OpenStack projects.
Change-Id: I19c4d9577ff86325fc87b9c03825f40defeeb273

Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>