uxnds 0.4.2
- [3DS] Major screen drawing optimizations.
- [NDS] Fixed drawing vertically-flipped tiles on the bottom edge of the screen.
- [NDS] Fixed palette changes not being queued until frame change.
- Added key repeat emulation for physical button presses.
- Vertical drawing synchronization is no longer applied if a frame took longer than 1 VBlank to process.