Continuation of 53c79c5 - HitObject name changes.

Attempts to eliminate any confusion between OsuHitObject (raw, parsed hit objects) and HitObject (interface for game object types).
- Renamed "HitObject" interface to "GameObject", since these objects are specific to gameplay.
- Renamed "OsuHitObject" to "HitObject", since these objects are primarily containers for parsed data.

Sorry if the name-swapping is confusing; these should be better names in the long run.

Signed-off-by: Jeffrey Han <itdelatrisu@gmail.com>

src/itdelatrisu/opsu/objects/DummyObject.java

@@ -18,25 +18,25 @@
 
 package itdelatrisu.opsu.objects;
 
-import itdelatrisu.opsu.beatmap.OsuHitObject;
+import itdelatrisu.opsu.beatmap.HitObject;
 
 import org.newdawn.slick.Graphics;
 
 /**
- * Dummy hit object, used when another HitObject class cannot be created.
+ * Dummy hit object, used when another GameObject class cannot be created.
  */
-public class DummyObject implements HitObject {
-	/** The associated OsuHitObject. */
-	private OsuHitObject hitObject;
+public class DummyObject implements GameObject {
+	/** The associated HitObject. */
+	private HitObject hitObject;
 
 	/** The scaled starting x, y coordinates. */
 	private float x, y;
 
 	/**
 	 * Constructor.
-	 * @param hitObject the associated OsuHitObject
+	 * @param hitObject the associated HitObject
 	 */
-	public DummyObject(OsuHitObject hitObject) {
+	public DummyObject(HitObject hitObject) {
 		this.hitObject = hitObject;
 		updatePosition();
 	}