Configure the tag base directory for the release plugin, since struts-annotations does not have trunk/branches/tags of its own.

git-svn-id: https://svn.apache.org/repos/asf/struts/maven/trunk/struts-annotations@499492 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index f3218c1..bad141d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -36,6 +36,12 @@
                     <target>1.5</target>
                 </configuration>
             </plugin>
+            <plugin>
+                <artifactId>maven-release-plugin</artifactId>
+                <configuration>
+                    <tagBase>https://svn.apache.org/repos/asf/struts/maven/tags</tagBase>
+                </configuration>
+            </plugin>
         </plugins>
     </build>