com.hazelcast.client test cleanup (packages mapreduce to queue + base directory)

Cleanup for the another 6 test packages and the base directory in com.hazelcast.client.

Removed (mostly) generic warnings. Renamed @Before[Class] and @After[Class] functions. Renamed one-character-variables. Renamed variables instance/hz/something[1-9] to server/client[1-9]. Removed final from variables and parameters where suitable. Changed visibility and static of members and functions. Cleanup of imports. Made some whitespace changes and re-arrangements in the code.

ClientConfig.setRedoOperation() and ClientConfig.setSmartRouting() are deprecated but are still used in some of these tests. Should those calls be adapted to the new functions as well?