Overwrite storm-kafka-client 1.x-branch into 1.0.x-branch

This is to track the effort of syncing up divergence between storm-kafka-client 1.x-branch and 1.0.x-branch so that critical fixes can be go in 1.0.x-branch as well.

Note that it can modify storm-core as well (unlikely in a backwards-incompatible way but not 100% sure), so we should make a decision whether we allow the change in bugfix version line.

Linking discussion thread:

https://lists.apache.org/thread.html/0451fed132bb982b618d9e0780282a87554f1bc5747827599f276944@%3Cdev.storm.apache.org%3E