fixes cleaning up of ironic directory from /etc

Closes-Bug: 1391083

Change-Id: Ic47161ab375716cc39ee1a7dd57034782717e323
apparently the upstream naming is tempest-lib

tempest_lib was how this was generally referred to, however that meant
that the job naming wasn't specifying the correctly src
library. Change to tempest-lib to actually test these things before
release.

Change-Id: I4c0712156d7ff71ee43747f30ab940e249d12ebc
Merge "apparently the upstream naming is tempest-lib"
Merge "fixes cleaning up of ironic directory from /etc"