added external javadoc links (commons-beanutils apidoc is linked)

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/digester/trunk@1188034 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 813235b..38bd45c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -261,6 +261,18 @@
   <reporting>
     <plugins>
       <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-javadoc-plugin</artifactId>
+        <version>2.8</version>
+        <configuration>
+          <linksource>true</linksource>
+          <links>
+            <link>http://download.oracle.com/javase/1.5.0/docs/api/</link>
+            <link>http://commons.apache.org/beanutils/v1.8.3/apidocs/</link>
+          </links>
+        </configuration>
+      </plugin>
+      <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>findbugs-maven-plugin</artifactId>
         <version>2.3.2</version>