Release fixes.

- Nix attempts to link to ancient, no longer in existence, Oracle hosted
Javadocs.

- Manually include code to attach javadocs and source jars during release,
because we no longer get that from the OSS parent pom. We can't use the OSS
parent pom because it redirects release stuff to the ossrh Maven Central
servers that no longer exist. Would be nice if they made and published a new
OSS parent pom. Shrug.

pom.xml

@@ -161,10 +161,6 @@
           <quiet>true</quiet>
           <show>public</show>
           <additionalparam>-Xdoclint:all -Xdoclint:-missing</additionalparam>
-          <links>
-            <link>http://java.sun.com/products/javamail/javadocs/</link>
-            <link>http://download.oracle.com/javaee/1.2.1/api/</link>
-          </links>
         </configuration>
       </plugin>
 
@@ -248,12 +244,38 @@
     </profile>
 
     <profile>
-      <id>release-sign-artifacts</id>
+      <id>release-extras</id>
       <activation>
         <property><name>performRelease</name><value>true</value></property>
       </activation>
       <build>
         <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-source-plugin</artifactId>
+            <version>2.1.2</version>
+            <executions>
+              <execution>
+                <id>attach-sources</id>
+                <goals>
+                  <goal>jar-no-fork</goal>
+                </goals>
+              </execution>
+            </executions>
+          </plugin>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-javadoc-plugin</artifactId>
+            <version>2.9.1</version>
+            <executions>
+              <execution>
+                <id>attach-javadocs</id>
+                <goals>
+                  <goal>jar</goal>
+                </goals>
+              </execution>
+            </executions>
+          </plugin>
           <plugin>
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-gpg-plugin</artifactId>
@@ -291,6 +313,5 @@
         </snapshotRepository>
       </distributionManagement>
     </profile>
-
   </profiles>
 </project>