change ZooKeeper configuration, add producer and consumer, refactor active client API
Add interface to get the number of brokers in the cluster
Merge branch 'master' of github.com:knowledgehacker/activemq-tools

Conflicts:
	consumer/src/main/java/examples/consumer/QueueConsumeClientTester.java
	producer/src/main/java/examples/producer/QueueProduceClientTester.java