Removed leaseId from function signature - it isn't used by the service.
Added return value for breakLease. Also fixed some warnings in the blob integration fixture.
Updated doc comments
Added back original overloads of breakLease to keep back compat, marked them deprecated.
Merge pull request #8 from christav/update-breaklease-signature-88

Update breaklease signature, fix for #88
Merge pull request #228 from christav/dev

Update breaklease signature