Modified POM to add Javadoc and GPG plugin

pom.xml

@@ -248,6 +248,12 @@
                 <artifactId>maven-javadoc-plugin</artifactId>
                 <version>2.8</version>
                 <executions>
+		    <execution>
+                        <id>attach-javadocs</id>
+	                <goals>
+                            <goal>jar</goal>
+                        </goals>
+		    </execution>
                     <execution>
                         <phase>javadoc</phase>
                         <goals>
@@ -314,6 +320,19 @@
                     </reporting>
                 </configuration>
             </plugin>
+	    <plugin>
+                 <groupId>org.apache.maven.plugins</groupId>
+                 <artifactId>maven-gpg-plugin</artifactId>
+                     <executions>
+                         <execution>
+                             <id>sign-artifacts</id>
+		             <phase>verify</phase>
+                             <goals>
+                                 <goal>sign</goal>
+                             </goals>
+                         </execution>
+                     </executions>
+	</plugin>
         </plugins>
     </build>
 </project>