* Fix health indicator to properly indicate partition failure
* Add new flag to control binder health indicator behavior
* Regardless of the consumer that is reading from a partition, if the binder
detects that a partition for the topic is without a leader, mark the binder
health as DOWN (if the flag is set to true).
* Remove synchronize block since only one thread executes the block
* Add Docs for the new binder flag
* Fix checkstyle issues
1e9aa60c4e