MPANT-7. Not obeying jar overrides. While this patch doesn't get every case, it does

get the common one of using an included lib.  I am using this succesfuly with commons-email's
ant build.


git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@116257 13f79535-47bb-0310-9956-ffa450edef68

ant/src/plugin-test/project.xml

@@ -53,6 +53,15 @@
   </developers>
 
   <dependencies>
+    <!-- Used in testing maven.jar.override -->
+    <dependency>
+      <groupId>activation</groupId>
+      <artifactId>activation</artifactId>
+      <version>1.0.2</version>
+      <type>jar</type>
+      <properties/>
+    </dependency>  
+    
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>