Update pom.xml for publishing to Maven Central

pom.xml

@@ -126,6 +126,22 @@
                 </configuration>
             </plugin>
 
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-release-plugin</artifactId>
+                <version>2.5.1</version>
+                <configuration>
+                    <tagNameFormat>@{project.version}</tagNameFormat>
+                </configuration>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.apache.maven.shared</groupId>
+                        <artifactId>maven-invoker</artifactId>
+                        <version>2.2</version>
+                    </dependency>
+                </dependencies>
+            </plugin>
+
 <!-- The below plugins are useful when debugging locally to be able to run an
 example, bringing in the proper CLASSPATHs of all dependencies, from the actual
 final JAR file instead of the intermediate .class files. -->
@@ -180,6 +196,9 @@ final JAR file instead of the intermediate .class files. -->
     <profiles>
         <profile>
             <id>release</id>
+            <properties>
+                <gpg.executable>gpg</gpg.executable>
+            </properties>
             <build>
                 <plugins>
                     <plugin>
@@ -195,6 +214,12 @@ final JAR file instead of the intermediate .class files. -->
                                 </goals>
                             </execution>
                         </executions>
+                        <configuration>
+                            <gpgArguments>
+                                <arg>--pinentry-mode</arg>
+                                <arg>loopback</arg>
+                            </gpgArguments>
+                        </configuration>
                     </plugin>
 
                     <plugin>
@@ -224,6 +249,7 @@ final JAR file instead of the intermediate .class files. -->
                             </execution>
                         </executions>
                     </plugin>
+
                     <plugin>
                         <groupId>org.sonatype.plugins</groupId>
                         <artifactId>nexus-staging-maven-plugin</artifactId>