Update central-publishing-maven-plugin (#55)

Also remove unnecessary default distributionManagement configuration.

Author: marchof

pom.xml

@@ -157,7 +157,7 @@
 			<plugin>
 				<groupId>org.sonatype.central</groupId>
 				<artifactId>central-publishing-maven-plugin</artifactId>
-				<version>0.7.0</version>
+				<version>0.9.0</version>
 				<extensions>true</extensions>
 			</plugin>
 		</plugins>
@@ -187,15 +187,4 @@
 		</profile>
 	</profiles>
 
-	<distributionManagement>
-		<snapshotRepository>
-			<id>central</id>
-			<url>https://central.sonatype.com/repository/maven-snapshots/</url>
-		</snapshotRepository>
-		<repository>
-			<id>central</id>
-			<url>https://ossrh-staging-api.central.sonatype.com/service/local/staging/deploy/maven2/</url>
-		</repository>
-	</distributionManagement>
-
 </project>