Experiment with nexus-staging-maven-plugin autoclosing feature

[TheSnoozer]

As per #12 (comment).
Experiment with the autoclosing feature of nexus-staging-maven-plugin.

<distributionManagement>
  <snapshotRepository>
    <id>ossrh</id>
    <url>https://s01.oss.sonatype.org/content/repositories/snapshots</url>
  </snapshotRepository>
</distributionManagement>
<build>
  <plugins>
    <plugin>
      <groupId>org.sonatype.plugins</groupId>
      <artifactId>nexus-staging-maven-plugin</artifactId>
      <version>1.6.7</version>
      <extensions>true</extensions>
      <configuration>
        <serverId>ossrh</serverId>
        <nexusUrl>https://s01.oss.sonatype.org/</nexusUrl>
        <autoReleaseAfterClose>true</autoReleaseAfterClose>
      </configuration>
    </plugin>
    ...
  </plugins>
</build>

[TheSnoozer]

Won't do.