Add in @Overrides across the board, clean up the comments around them some, and remove

unneeded imports.
I've got partially completed patches for narya & vilya, too, but nenya was the 
only one that wound up in a decent state after a friday evening puttering at it,
killing time waiting on other things to finish.


git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@572 ed5b42cb-e716-0410-a449-f6a68f950b19

tests/src/java/com/threerings/cast/CharSpriteViz.java

@@ -79,6 +79,7 @@ public class CharSpriteViz extends JPanel
         }
     }
 
+    @Override
     public void paintComponent (Graphics g)
     {
         super.paintComponent(g);

tests/src/java/com/threerings/cast/bundle/BundledComponentRepositoryTest.java

@@ -38,6 +38,7 @@ public class BundledComponentRepositoryTest extends TestCase
         super(BundledComponentRepositoryTest.class.getName());
     }
 
+    @Override
     public void runTest ()
     {
         try {