Add generic tox job (multiple playbooks)

Here we now support 3 tox jobs; cover, linters and py27.

As you can see by looking at the code, we are not defining any
variables (vars) in .zuul.yaml. This means, we create 3 separate
playbooks (tox-cover.yaml, tox-py27, tox-linters.yaml) which then
contain the variables we need for our tox role.

Change-Id: I42f8855f44da51cb3d23f1825bd3258937543b2f
Signed-off-by: Paul Belanger <pabelanger@redhat.com>
diff --git a/playbooks/roles/run-bindep/tasks/main.yaml b/playbooks/roles/run-bindep/tasks/main.yaml
new file mode 100644
index 0000000..7717c86
--- /dev/null
+++ b/playbooks/roles/run-bindep/tasks/main.yaml
@@ -0,0 +1,5 @@
+---
+- name: Run install-distro-packages.sh
+  shell: /usr/local/jenkins/slave_scripts/install-distro-packages.sh
+  args:
+    chdir: "/home/zuul/workspace/src/{{ zuul.project }}"