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/media/tile/bundle/BundledTileSetRepositoryTest.java

@@ -37,6 +37,7 @@ public class BundledTileSetRepositoryTest extends TestCase
         super(BundledTileSetRepositoryTest.class.getName());
     }
 
+    @Override
     public void runTest ()
     {
         try {

tests/src/java/com/threerings/media/tile/tools/xml/XMLTileSetParserTest.java

@@ -35,6 +35,7 @@ public class XMLTileSetParserTest extends TestCase
         super(XMLTileSetParserTest.class.getName());
     }
 
+    @Override
     public void runTest ()
     {
         HashMap sets = new HashMap();

tests/src/java/com/threerings/media/util/PathViz.java

@@ -57,7 +57,7 @@ public class PathViz extends MediaPanel
         sprite.move(path);
     }
 
-    // documentation inherited from interface
+    @Override
     public void paintBetween (Graphics2D gfx, Rectangle dirtyRect)
     {
         super.paintBetween(gfx, dirtyRect);
@@ -66,6 +66,7 @@ public class PathViz extends MediaPanel
         _spritemgr.renderSpritePaths(gfx);
     }
 
+    @Override
     public Dimension getPreferredSize ()
     {
         return new Dimension(300, 300);
@@ -94,6 +95,7 @@ public class PathViz extends MediaPanel
             _oyoff = 16;
         }
 
+        @Override
         public void paint (Graphics2D gfx)
         {
             gfx.setColor(Color.blue);