Added options for global fixed difficulty settings (CS, HP, AR, OD).

- Added a new tab in Game Options screen containing the values.

Other changes:
- Corrected "Hard Rock" difficulty modifiers.

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

src/itdelatrisu/opsu/GameImage.java

@@ -213,7 +213,7 @@ public enum GameImage {
 	/**
 	 * Returns whether or not the image has been scaled.
 	 */
-	public boolean isScaled() {	return (skinImage != null) ? false : scaled; }
+	public boolean isScaled() { return (skinImage != null) ? false : scaled; }
 
 	/**
 	 * Sets the scaled status of the image.