Fix parent pom reference

(Prevents building from a fresh clone but not if already cached
the parent.)

Fixes gh-223

spring-cloud-starter-config/pom.xml

@@ -6,7 +6,6 @@
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-config</artifactId>
 		<version>1.1.0.BUILD-SNAPSHOT</version>
-		<relativePath/>
 	</parent>
 	<artifactId>spring-cloud-starter-config</artifactId>
 	<version>1.1.0.BUILD-SNAPSHOT</version>