minion_sim: stats path updates

Signed-off-by: John Spray <john.spray@redhat.com>
Implement logging.getChild() with join() (not in 2.6) in other places

the patch is like 685a57ed762a9a6e7aea420a6189c3651b03f018

Signed-off-by: Rongze Zhu <zrzhit@gmail.com>
salt: Fix socket path pattern match

The regular expression "^(.*)-(.*)\.(.*).asok$" for socket path can't catch
the example "ceph-mon.www-2.abc.com.asok", the cluster_name,service_type,
service_id will be incorrect.

The new regular expression  "^(.+)-(mon|osd|mds)\.(.+)\.asok$" can catch the
example and "(mon|osd|mds)" will match all service type in ceph.

Signed-off-by: Rongze Zhu <zrzhit@gmail.com>
Merge pull request #146 from zhurongze/fix-socket-path-pattern-match

Fix socket path pattern match
Merge pull request #145 from zhurongze/fix-getChild-AttributeError-in-other-places

Implement logging.getChild() with join() (not in 2.6) in other places
docs: adds instructions for running tests on external calamari

Signed-off-by: Gregory Meno <gregory.meno@inktank.com>
Merge pull request #147 from ceph/wip-sim

minion_sim: stats path updates
Merge pull request #148 from ceph/wip-external-tests-docs

docs: adds instructions for running tests on external calamari