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/util/DirectionTest.java

@@ -35,6 +35,7 @@ public class DirectionTest extends TestCase
         super(DirectionTest.class.getName());
     }
 
+    @Override
     public void runTest ()
     {
         int orient = NORTH;

tests/src/java/com/threerings/util/DirectionViz.java

@@ -44,12 +44,14 @@ public class DirectionViz extends JPanel
         addMouseMotionListener(this);
     }
 
+    @Override
     public void doLayout ()
     {
         super.doLayout();
         _center = new Point(getWidth() / 2, getHeight() / 2);
     }
 
+    @Override
     public void paintComponent (Graphics g)
     {
         super.paintComponent(g);

tests/src/java/com/threerings/util/KeyboardManagerApp.java

@@ -94,7 +94,7 @@ public class KeyboardManagerApp
         public static final String MOVE_RIGHT = "move_right";
         public static final String DROP = "drop";
 
-        // documentation inherited
+        @Override
         public boolean handleAction (ActionEvent action)
         {
             String cmd = action.getActionCommand();