This makes some cleanup changes to the DevStack plugin for the
change to master and bionic.
* Define values for precedence handling by the upstream devstack playbook
* Add STX_INST_DIR for a deterministic install location
* Update the linters job in tox.ini to correctly include the devstack plugin
Change-Id: Ida3a6c07d49510a6ec0276e83a3f966b826de26e
Signed-off-by: Dean Troyer <dtroyer@gmail.com>
6be5a751c9