Upgrade to Spring Data Gosling RELEASE

Closes spring-projectsgh-3860

Author: wilkinsona

spring-boot-dependencies/pom.xml

@@ -129,7 +129,7 @@
 		<spring-amqp.version>1.5.0.RC1</spring-amqp.version>
 		<spring-cloud-connectors.version>1.2.0.RELEASE</spring-cloud-connectors.version>
 		<spring-batch.version>3.0.5.RELEASE</spring-batch.version>
-		<spring-data-releasetrain.version>Gosling-RC1</spring-data-releasetrain.version>
+		<spring-data-releasetrain.version>Gosling-RELEASE</spring-data-releasetrain.version>
 		<spring-hateoas.version>0.18.0.RELEASE</spring-hateoas.version>
 		<spring-integration.version>4.2.0.RC1</spring-integration.version>
 		<spring-loaded.version>1.2.4.RELEASE</spring-loaded.version>