v0.12

= Changes from v0.11 =

Performance improvements
- With the Linux binary on my development machine
- Typical 2600 ROM: about 9% improvement
- ROM using the ARM coprocessor: about 20% improvement

CRT improvements
- CRT sharpness control
- Scanline and ShadowMask coarseness controls
- Bilinear filter. Improves emulation of brick effect in Zookeeper
- Sizing of playmode screen is now limited to whole integers
- This prevents color banding in some ROMs

Television
- Screen roll
- PAL signal detection improved. Eliminated a false positive

MovieCart updated to match reference implementation

Input buffer lowered to five frames. User input should feel better

Rewinding of PlusROM carts should now work in all instances