Add missing plugin management

Author: sbabcoc

pom.xml

@@ -41,7 +41,7 @@
     <connection>scm:git:https://github.com/Nordstrom/Java-Utils.git</connection>
     <developerConnection>scm:git:https://github.com/Nordstrom/Java-Utils.git</developerConnection>
     <url>https://github.com/Nordstrom/Java-Utils/tree/master</url>
-    <tag>HEAD</tag>
+    <tag>java-utils-1.6.0</tag>
   </scm>
 
   <distributionManagement>
@@ -120,6 +120,11 @@
           <artifactId>nexus-staging-maven-plugin</artifactId>
           <version>${staging-plugin.version}</version>
         </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-release-plugin</artifactId>
+          <version>${release-plugin.version}</version>
+        </plugin>
       </plugins>
     </pluginManagement>
     <plugins>
@@ -200,5 +205,5 @@
       </properties>
     </profile>
   </profiles>
-  <version>1.6.0-SNAPSHOT</version>
+  <version>1.6.0</version>
 </project>