fixes the "RetryOnRenew" lease-renewal needed bug in jclouds, locally, with some guice magic

https://issues.apache.org/jira/browse/JCLOUDS-615 / https://issues.apache.org/jira/browse/BROOKLYN-6

when the former above is fixed properly upstream we can undo this.
What are implication of always passing in `useSoftlayerFix == true`? Could that affect/break other providers? Should we check if `provider.equals("softlayer")` (or whatever softlayer blobstore provider is called)?