Relax constraints in the tests now that we (a) don't use IP addresses and (b) can't interrogate docker for the path of the volume any more because it's not going via powerstrip.
Relax constraints in the tests now that we (a) don't use IP addresses and (b) can't interrogate docker for the path of the volume any more because it's not going via powerstrip.

mbrukman/flocker-docker-plugin,mbrukman/flocker-docker-plugin,wallnerryan/flocker-docker-plugin,moypray/flocker-docker-plugin,hackday-profilers/flocker-docker-plugin,mbrukman/flocker-docker-plugin,hackday-profilers/flocker-docker-plugin,wallnerryan/flocker-docker-plugin,moypray/flocker-docker-plugin,hackday-profilers/flocker-docker-plugin,wallnerryan/flocker-docker-plugin,moypray/flocker-docker-plugin