Initial proposal for DeltaInstanceInfo
Adding a forChanges in DeltaInstanceInfo to return stream of Delta ChangeNotifications
Cleaned up tests a little
Another implementation of delta and deltaInstanceInfo
Increasing heartbeatLatch await time for test case.
update comments
Reworked delta (for InstanceInfo)
Use interface TypeVariable instead of proprietary Impl
Merge pull request #169 from qiangdavidliu/2.x

Initial proposal for DeltaInstanceInfo