Merge pull request #36 from cicirello/development

Update pom.xml

Author: cicirello

pom.xml

@@ -170,11 +170,12 @@
     </plugin>
 	<plugin>
         <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-jarsigner-plugin</artifactId>
-        <version>3.0.0</version>
+        <artifactId>maven-gpg-plugin</artifactId>
+        <version>1.6</version>
         <executions>
           <execution>
-            <id>sign</id>
+            <id>sign-artifacts</id>
+            <phase>verify</phase>
             <goals>
               <goal>sign</goal>
             </goals>