JavaDoc cleanup.

src/main/java/org/bukkit/event/block/BlockFromToEvent.java

@@ -39,10 +39,22 @@ public class BlockFromToEvent extends BlockEvent implements Cancellable {
         return to;
     }
 
+     /**
+     * Gets the cancellation state of this event. A cancelled event will not
+     * be executed in the server, but will still pass to other plugins
+     *
+     * @return true if this event is cancelled
+     */
     public boolean isCancelled() {
         return cancel;
     }
 
+    /**
+     * Sets the cancellation state of this event. A cancelled event will not
+     * be executed in the server, but will still pass to other plugins
+     *
+     * @param cancel true if you wish to cancel this event
+     */
     public void setCancelled(boolean cancel) {
         this.cancel = cancel;
     }