HORNETQ-1383 - Implement policy to reap slow consumers automatically

Conflicts:
	hornetq-server/src/main/java/org/hornetq/core/server/HornetQMessageBundle.java
	hornetq-server/src/main/java/org/hornetq/core/server/HornetQServerLogger.java
	hornetq-server/src/main/java/org/hornetq/core/server/Queue.java
	hornetq-server/src/main/java/org/hornetq/core/server/impl/QueueImpl.java
	hornetq-server/src/main/java/org/hornetq/core/server/impl/ServerConsumerImpl.java
	hornetq-server/src/main/resources/schema/hornetq-configuration.xsd
	hornetq-server/src/test/java/org/hornetq/core/config/impl/FileConfigurationTest.java
	hornetq-server/src/test/java/org/hornetq/core/server/impl/ScheduledDeliveryHandlerTest.java
	tests/unit-tests/src/test/java/org/hornetq/tests/unit/core/postoffice/impl/FakeQueue.java
Merge pull request #1961 from jbertram/2.3.x

HORNETQ-1383 - Implement policy to reap slow consumers automatically
upgrade version to 2.3.24.Final
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