Threads waiting JCache sync listener completion events should be waken up when client is shutdown, cache is closed and destroyed.
An intro paragraph authored for this chapter.
More config properties added with their explanat..

ions.
Added an upper timeout for JCache sync listener completion latch.await() and converted it to a incremental await in a loop to be able to check if instance is active.
Merge pull request #4333 from mdogan/jcache-sync

Threads waiting JCache sync listener completion events should be waken u...