Merge pull request #1946 from clebertsuconic/2.3.x

release 2.3.23
BZ-1160683 NoSuchMethodError during init

When compiled by JDK 8 targeting Java 6 and then run on JDK 6 or 7 the
ConcurrentHashMap#keyset() method can fail because the return types
changed in Java 8. Using ConcurrentMap interface to resolve the issue.
Merge pull request #1951 from jbertram/2.3.x

BZ-1160683 NoSuchMethodError during init
BZ-1148721 Sync Netty version with EAP
Fix script after directory change
BZ-1162348 Overzealous logging for missing queue
Merge pull request #1952 from jbertram/2.3.x

Handful of fixes
HORNETQ-1444 Disallow SSLv3 for POODLE

Conflicts:
	hornetq-server/src/main/java/org/hornetq/core/remoting/impl/netty/NettyAcceptor.java
	hornetq-server/src/main/java/org/hornetq/core/server/HornetQServerLogger.java
	tests/integration-tests/src/test/java/org/hornetq/tests/integration/ssl/CoreClientOverOneWaySSLTest.java
Merge pull request #1957 from jbertram/2.3.x_POODLE

HORNETQ-1444 Disallow SSLv3 for POODLE