re-added the javadoc plugin. was removed some time ago.
diff --git a/pom.xml b/pom.xml
index b628dbe..e2766f3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -201,7 +201,7 @@
               </execution>
             </executions>
           </plugin>
-          <!-- plugin>
+          <plugin>
             <artifactId>maven-javadoc-plugin</artifactId>
             <version>2.2</version>
             <executions>
@@ -212,7 +212,7 @@
                 </goals>
               </execution>
             </executions>
-          </plugin -->
+          </plugin>
           <plugin>
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-scm-plugin</artifactId>