Zuul now supports including the file extension on the playbook path
and omitting the extension is now deprecrated. Update references
to include the extension.
Change-Id: Ia1747b6c97140b7e12972c7f7b14cb0620ead084
* Add unit-tips job to run unit tests with the same project master branches
as the functional-tips job (mostly useful for the unit.integ tests)
* Add irrelevant-files to the osc-functional-devstack-base job
* Comment out the functional-n-net job as it is horribly broken for now
until the replacement package-installed OpenStack is ready
Change-Id: I5acdcb0a2f0f0dfe488740ae0add36366cc0ee21
