Revert "HBASE-12471 Task 4. replace internal ConnectionManager#{delete,get}Connection use with #close, #createConnection (0.98, 0.99)"

This reverts commit d3e7c3cfa9cd77607e642e4a776969dd1c8a27d5.
Revert "HBASE-12495 Use interfaces in the shell scripts (Solomon Duskis)"

This reverts commit 929bb34181a2218a88773d7c493fc22f005d8a98.
Revert "HBASE-12471 Task 4. replace internal ConnectionManager#{delete,get}Connection use with #close, #createConnection (0.98, 0.99)" ADDENDUM
HBASE-12532 TestFilter failing occasionally with ExitCodeException doing chmod since HBASE-10378
HBASE-12532 TestFilter failing occasionally with ExitCodeException doing chmod since HBASE-10378 ADDENDUM
Patch up Jetty to disable SSLv3 (CVE-2014-3566)
HBASE-12529 Use ThreadLocalRandom for RandomQueueBalancer
HBASE-12535 NPE in WALFactory under contention for getInstance()

Signed-off-by: stack <stack@apache.org>
HBASE-12539 HFileLinkCleaner logs are uselessly noisy