Upgrade to Spring Data Build parent Maven POM 3.0.0-SNAPSHOT.

Resolves spring-projectsgh-538.

Author: jxblum

pom.xml

@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.data.build</groupId>
 		<artifactId>spring-data-parent</artifactId>
-		<version>2.6.0-SNAPSHOT</version>
+		<version>3.0.0-SNAPSHOT</version>
 	</parent>
 
 	<groupId>org.springframework.data</groupId>