Rename redis starter to spring-boot-starter-data-redis

Closes gh-1033

spring-boot-samples/spring-boot-sample-cache/README.adoc

@@ -79,7 +79,7 @@ can set the `spring.cache.infinispan.config` property to use the provided
 
 
 === Redis
-Add the `spring-boot-starter-redis` and make sure it is configured properly (by default,
+Add the `spring-boot-starter-data-redis` and make sure it is configured properly (by default,
 a redis instance with the default settings is expected on your local box).
 
 

spring-boot-samples/spring-boot-sample-cache/pom.xml

@@ -71,7 +71,7 @@
 		<!--
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-redis</artifactId>
+			<artifactId>spring-boot-starter-data-redis</artifactId>
 		</dependency>
 		-->
 		<!--