add declareQueue to AmqpAdmin interface

additiona docs
XML example to configure AmqpAdmin implementations

helloworld/src/main/java/org/springframework/amqp/helloworld/BrokerConfigurationApplication.java

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+package org.springframework.amqp.helloworld;
+
+import org.springframework.amqp.core.AmqpAdmin;
+import org.springframework.amqp.core.Queue;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+public class BrokerConfigurationApplication {
+
+	/**
+	 * An example application that only configures the AMQP broker
+	 */
+	public static void main(String[] args) {
+		ApplicationContext context = new ClassPathXmlApplicationContext("rabbitConfiguration.xml");
+		AmqpAdmin amqpAdmin = context.getBean(AmqpAdmin.class);
+		Queue helloWorldQueue = new Queue("hello.world.queue");
+		
+		amqpAdmin.declareQueue(helloWorldQueue);
+
+	}
+
+}

helloworld/src/main/resources/rabbitConfiguration.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
+
+	<bean id="connectionFactory" class="org.springframework.amqp.rabbit.connection.SingleConnectionFactory">
+	    <constructor-arg value="localhost"/>
+	    <property name="username" value="guest"/>
+	    <property name="password" value="guest"/>
+	</bean>
+	
+	<bean id="amqpAdmin" class="org.springframework.amqp.rabbit.core.RabbitAdmin">
+		<constructor-arg ref="connectionFactory"/>
+	</bean>
+	
+</beans>