To allow us to easily turn of a 'bad' auth when it is trying to
connect to a third party server but that server is not reachable.

Currently it makes logging in slow as it needs to timeout on that auth
instance before trying the next one.

behatnotneeded

Change-Id: Ieeaeeaeb1bc0aa61ed3faad8f3bf751edd9c1023
Signed-off-by: Robert Lyon <robertl@catalyst.net.nz>