Now the test definition of nightly tests will be on freeipa repo. The
definition that's used on every PR (previously as .freeipa-pr-ci.yaml)
is in ipatests/prci_definitions/gating and the .freeipa-pr-ci.yaml file
is just a symlink to the real file.

In the same dir there is also nightly_master and nightly_rawhide, both
to be used in nightly tests.

Divided test_topology.py into 3 subtests.

Bumped vagrant template to version 0.1.6

This PR is the result of discussion on freeipa-devel mailing list [1].

[1] https://lists.fedoraproject.org/archives/list/freeipa-devel@lists.fedorahosted.org/message/4VAWJ4SFKKBFFICDLQCTXJWRRQHIYJLL/



Reviewed-By: Michal Reznik <mreznik@redhat.com>
Reviewed-By: Michal Reznik <mreznik@redhat.com>