"Too far away" with stick reverts visualizations.

Used to leave current visualization in place.  This is clearer, and
gives players a handy strategy for erasing visualizations when standing
inside a large claim - just point up at the sky and right click.

src/me/ryanhamshire/GriefPrevention/PlayerEventHandler.java

@@ -1253,6 +1253,7 @@ class PlayerEventHandler implements Listener
 				if(clickedBlockType == Material.AIR)
 				{
 					GriefPrevention.sendMessage(player, TextMode.Err, Messages.TooFarAway);
+					Visualization.Revert(player);
 					return;
 				}