Add spring-rabbit explicitly to the dependencies BOM

It actually still has to be managed using a property in
spring-cloud-stream-binders-parent, but this change is for users.
Any user that wants an app using stream and rabbit needs to use the
spring-cloud-dependencies BOM. A gradle user has to do nothing else
with this change. A maven user still has to add an explicit
<spring-aqmp.version/> to the application POM.

spring-cloud-stream-starters/pom.xml

@@ -9,9 +9,9 @@
 		<url>http://www.spring.io</url>
 	</organization>
 	<parent>
-	  <groupId>org.springframework.cloud</groupId>
-	  <artifactId>spring-cloud-stream-parent</artifactId>
-	  <version>1.0.0.BUILD-SNAPSHOT</version>
+		<groupId>org.springframework.cloud</groupId>
+		<artifactId>spring-cloud-stream-parent</artifactId>
+		<version>1.0.0.BUILD-SNAPSHOT</version>
 	</parent>
 	<modules>
 		<module>spring-cloud-starter-stream-rabbit</module>

spring-cloud-stream-starters/spring-cloud-starter-stream-rabbit/pom.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
@@ -16,6 +17,7 @@
 	</organization>
 	<properties>
 		<main.basedir>${basedir}/../..</main.basedir>
+		<spring-amqp.version>1.5.4.BUILD-SNAPSHOT</spring-amqp.version>
 	</properties>
 	<dependencies>
 		<dependency>