Update zuul ansible location

With multi-ansible support, the location of the zuul plugins/modules
has moved.

Also, pin ansible-lint to match the version in zuul-jobs. Note we move
all the deps for the linters job into test-requirements.txt then consume
the deps there under the tox linters target. This makes it easier to see
where deps are listed.

Finally bump hacking version up so that modern flake8 works with it.

Change-Id: I8e2cf1f2276bca5a912fed52062628b3b9d0d6d9

test-requirements.txt

@@ -6,6 +6,7 @@ flake8
 # We need to pin Ansible to <2.6 until Zuul supports it, otherwise ansible-lint
 # picks the latest version which is not known to work yet.
 ansible>=2.5.1,<2.6
-ansible-lint
+ansible-lint<4
+hacking>=1.1.0,<2.0.0
 bashate>=0.2
 zuul-sphinx>=0.1.1

tox.ini

@@ -27,7 +27,7 @@ commands =
 basepython = python3
 whitelist_externals = bash
 setenv =
-   ANSIBLE_LIBRARY= {envdir}/src/zuul/zuul/ansible/library
+   ANSIBLE_LIBRARY= {envdir}/src/zuul/zuul/ansible/base/library
 passenv =
   # NOTE(pabelanger): if you'd like to run tox -elinters locally, you'll need
   # to export ANSIBLE_ROLES_PATH pointing to the currect repos.
@@ -38,10 +38,7 @@ passenv =
 deps =
   # Zuul is required to supply the zuul ansible modules for ansible-lint
   -egit+https://git.openstack.org/openstack-infra/zuul#egg=zuul
-  ansible>=2.5.1,<2.6
-  ansible-lint
-  hacking>=0.10,<0.11
-  bashate>=0.2
+  -r{toxinidir}/test-requirements.txt
 commands =
   flake8 {posargs}
   # Ansible lint