Updates and fixes from fluddokt/opsu@76778f8 and fluddokt/opsu@cf321e9.

- Rotate slider ball image along the curve.
- Show download speed and time remaining when hovering over the download info button.
- Maintain aspect ratio of beatmap background image during gameplay.
- Clear beatmap background image cache after reaching OsuFile.MAX_CACHE_SIZE.
- Multiply hit circle size by OsuHitObject.getXMultiplier().
- Scale MENU_BUTTON_BG based on SongMenu.MAX_SONG_BUTTONS.
- Fixed download search TextField retaining focus even after leaving the downloads menu.
- Include Unicode title/artist strings in searches.
- Parse x,y beatmap coordinates as floats (instead of integers), and only read Kiai time if present.
- Added 1600x1200 resolution.

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

src/itdelatrisu/opsu/Options.java

@@ -393,6 +393,7 @@ public class Options {
 		RES_1440_900 (1440, 900),
 		RES_1600_900 (1600, 900),
 		RES_1680_1050 (1680, 1050),
+		RES_1600_1200 (1600, 1200),
 		RES_1920_1080 (1920, 1080),
 		RES_1920_1200 (1920, 1200),
 		RES_2560_1440 (2560, 1440),