DT/HF/Playback changes.

Can watch HalfTime on half speed.
Reset pitch on leaving the game state.
Load songInfo when entering select song menu.
Playback button fades in on hover instead of expands.
Reverted spinner changes. It should be fixed separately.

src/itdelatrisu/opsu/GameMod.java

@@ -170,8 +170,6 @@ public enum GameMod {
 		Collections.reverse(Arrays.asList(VALUES_REVERSED));
 	}
 
-	private static boolean justChanged = false;
-
 	/** The last calculated score multiplier, or -1f if it must be recalculated. */
 	private static float scoreMultiplier = -1f;
 
@@ -236,17 +234,6 @@ public enum GameMod {
 		return speedMultiplier;
 	}
 
-	/**
-	 *
-	 */
-	public static boolean justChanged() {
-		if (justChanged) {
-			justChanged = false;
-			return true;
-		}
-		return false;
-	}
-
 	/**
 	 * Returns the current game mod state (bitwise OR of active mods).
 	 */
@@ -385,7 +372,6 @@ public enum GameMod {
 
 		active = !active;
 		scoreMultiplier = speedMultiplier = -1f;
-		justChanged = true;
 
 		if (checkInverse) {
 			if (AUTO.isActive()) {