Title: #1831: Fixing test_topology tests
#### Fixing TestCASpecificRUVs::test_replica_uninstall_deletes_ruvs
This test will setup a master and a replica, uninstall replica and check
for the replica RUVs on the master. It was missing the step of running
ipa-replica-manage del <replica hostname> to properly remove the RUVs.
#### Fixing tests on TestReplicaManageDel
This commit fixes the tests on class TestReplicaManageDel:
Given that domain level 0 doest not have autodiscovery, we need to
configure /etc/resolv.conf with the master data (search <domain> and
nameserver <master_ip>) in order to ipa-replica-install succeed.
**Atention**: This patch should not be pushed until PR #1748 get merged.
As usual, as soon as we have an ack, I'll rebase the PR and remove the temp commit.
To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/1831/head:pr1831
git checkout pr1831