Tests: rename tests directories

Since we are hitting this bug :

https://bugzilla.redhat.com/show_bug.cgi?id=1324587
eg:

`failed: internal error: Monitor path /var/lib/libvirt/qemu/domain-bs-docker-cl
uster-dmcrypt-journal-collocation_mon0_1499294943_ba9faf7bf296533177f6/monitor.
sock too big for destination`

and we can't upgrade libvirt in our CI for some reason

we need to get the directories name shorter in order to workaround this
issue

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>

tox.ini

@@ -87,32 +87,32 @@ changedir=
   # tests a 1 mon, 1 osd, 1 mds and 1 rgw xenial cluster using raw_multi_journal OSD scenario
   xenial_cluster: {toxinidir}/tests/functional/ubuntu/16.04/cluster
   # tests a 1 mon 1 osd centos7 cluster using journal_collocation OSD scenario
-  journal_collocation: {toxinidir}/tests/functional/centos/7/journal-collocation
+  journal_collocation: {toxinidir}/tests/functional/centos/7/jrn-col
   # tests a 1 mon 1 osd centos7 cluster using dmcrypt_dedicated_journal OSD scenario
-  dmcrypt_journal: {toxinidir}/tests/functional/centos/7/dmcrypt-dedicated-journal
+  dmcrypt_journal: {toxinidir}/tests/functional/centos/7/crypt-ded-jrn
   # tests a 1 mon 1 osd centos7 cluster using dmcrypt_journal_collocation OSD scenario
-  dmcrypt_journal_collocation: {toxinidir}/tests/functional/centos/7/dmcrypt-journal-collocation
+  dmcrypt_journal_collocation: {toxinidir}/tests/functional/centos/7/crypt-jrn-col
   # tests a 1 mon, 1 osd, 1 mds and 1 rgw centos7 cluster using raw_multi_journal OSD scenario
   centos7_cluster: {toxinidir}/tests/functional/centos/7/cluster
   # an alias for centos7_cluster, this makes the name better suited for rhcs testing
   cluster: {toxinidir}/tests/functional/centos/7/cluster
   # tests a 1 mon, 1 osd, 1 mds and 1 rgw centos7 cluster using docker
-  docker_cluster: {toxinidir}/tests/functional/centos/7/docker-cluster
-  update_docker_cluster: {toxinidir}/tests/functional/centos/7/docker-cluster
-  purge_docker_cluster: {toxinidir}/tests/functional/centos/7/docker-cluster
-  docker_dedicated_journal: {toxinidir}/tests/functional/centos/7/docker-cluster-dedicated-journal
-  docker_dmcrypt_journal_collocation: {toxinidir}/tests/functional/centos/7/docker-cluster-dmcrypt-journal-collocation
+  docker_cluster: {toxinidir}/tests/functional/centos/7/docker
+  update_docker_cluster: {toxinidir}/tests/functional/centos/7/docker
+  purge_docker_cluster: {toxinidir}/tests/functional/centos/7/docker
+  docker_dedicated_journal: {toxinidir}/tests/functional/centos/7/docker-ded-jrn
+  docker_dmcrypt_journal_collocation: {toxinidir}/tests/functional/centos/7/docker-crypt-jrn-col
   purge_cluster: {toxinidir}/tests/functional/ubuntu/16.04/cluster
-  purge_dmcrypt: {toxinidir}/tests/functional/centos/7/dmcrypt-dedicated-journal
-  update_dmcrypt: {toxinidir}/tests/functional/centos/7/dmcrypt-dedicated-journal
+  purge_dmcrypt: {toxinidir}/tests/functional/centos/7/crypt-ded-jrn
+  update_dmcrypt: {toxinidir}/tests/functional/centos/7/crypt-ded-jrn
   update_cluster: {toxinidir}/tests/functional/centos/7/cluster
-  bluestore_journal_collocation: {toxinidir}/tests/functional/centos/7/bs-journal-collocation
-  bluestore_cluster: {toxinidir}/tests/functional/centos/7/bs-cluster
-  bluestore_dmcrypt_journal: {toxinidir}/tests/functional/centos/7/bs-dmcrypt-dedicated-journal
-  bluestore_dmcrypt_journal_collocation: {toxinidir}/tests/functional/centos/7/bs-dmcrypt-journal-colloc
-  bluestore_docker_cluster: {toxinidir}/tests/functional/centos/7/bs-docker-cluster
-  bluestore_docker_dedicated_journal: {toxinidir}/tests/functional/centos/7/bs-docker-cluster-dedicated-journal
-  bluestore_docker_dmcrypt_journal_collocation: {toxinidir}/tests/functional/centos/7/bs-docker-dmcrypt-journal-colloc
+  bluestore_journal_collocation: {toxinidir}/tests/functional/centos/7/bs-jrn-col
+  bluestore_cluster: {toxinidir}/tests/functional/centos/7/bluestore
+  bluestore_dmcrypt_journal: {toxinidir}/tests/functional/centos/7/bs-crypt-ded-jrn
+  bluestore_dmcrypt_journal_collocation: {toxinidir}/tests/functional/centos/7/bs-crypt-jrn-col
+  bluestore_docker_cluster: {toxinidir}/tests/functional/centos/7/bs-docker
+  bluestore_docker_dedicated_journal: {toxinidir}/tests/functional/centos/7/bs-dock-ded-jrn
+  bluestore_docker_dmcrypt_journal_collocation: {toxinidir}/tests/functional/centos/7/bs-dock-crypt-jrn-col
 
 commands=
   rhcs: ansible-playbook -vv -i "localhost," -c local {toxinidir}/tests/functional/rhcs_setup.yml --extra-vars "change_dir={changedir}" --tags "vagrant_setup"