jclouds test cleanup: incorporate review comments
Tests: rename prop "brooklyn.jclouds" to "brooklyn.location.jclouds"
Disable StandaloneJcloudsLiveTest

- was already ignored as "WIP", and is of very dubious value!
JcloudsMachinePoolLiveTest extends AbstractJcloudsTest
Fix JcloudsLocation persistence
Fixing jclouds tests
Testing RebindManager's sortParentFirst()