commented out GPG plugin

Author: scinnamond

org.modeldriven.fuml/pom.xml

@@ -398,7 +398,7 @@
           Comment out the below GPG plugin if not set up with GPG
           and just want to install local locally. 
       -->
-           
+      <!--     
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-gpg-plugin</artifactId>
@@ -413,7 +413,7 @@
           </execution>
         </executions>
       </plugin>
-       
+      --> 
       <!--
           Release Plugin (Update version in POM before/after release, create
           tag, deploy) to try: mvn release:prepare -DdryRun=true && mvn