Build narya-tools with jarjar so as to hide its included dependencies in the

unfortunate event that someone puts it on a real project classpath.

Modified GenTask to totally hide Velocity from derived classes so that external
libraries can make use of it in their own Ant tasks without inheriting a
Velocity dependency and also becoming booched because Velocity was renamed in
jarjar and won't link against an unrenamed Velocity.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@6185 542714f4-19e9-0310-aa3c-eee0fc999fb1

etc/libs-incl.xml

@@ -14,6 +14,7 @@
     <include name="gwt-user.jar"/>
     <include name="gwt-utils.jar"/>
     <include name="javassist.jar"/>
+    <include name="jarjar-1.0.jar"/>
     <include name="jsr250-api.jar"/>
     <include name="junit4.jar"/>
     <include name="retroweaver-all-1.2.2.jar"/>