Bug - Testing in Apex with OpenStack master fails

Support yet another path to find config files.
Tune config changes to take effect properly for maintenance.
transport_url parcing enhanced.
Nova reset state to error takes well over 1 second these days
and at the end it then sends notification that we use.
Only reasonable thing is to send notification straight from
the Inspector as it should have been done in the first place.
Now we can do 200ms as total time, with just a few millisends
actuallly spent on sending the notification. Further one
could improve this by having node specific Inspector agent to
react even in more Telco grade speed.

Change-Id: I787f8e9dd6484842c6c568b15767018d11b36862
Signed-off-by: Tomi Juvonen <tomi.juvonen@nokia.com>