Corrected error on Chip-8

v1.11:

- A last minute vertical and horizontal pixel optimization attempt turned out to break some games such as Blitz! and Wall, so this change has been rolled back.

- Updated the cosmetic settings section to allow for 32 color combinations for the game screen instead of just 16.

- There was small bug in the key mapping settings where the joystick would only allow left rotation sometimes when switching between keys and joystick

- Small update to the manual