Move axis method to a helper.
Make camera externally accessible.
Add method to determine if reader's screen is widescreen.
Cleanup.
Use ints instead of numbers.
Refactor config for clarity. Added inline documentation. Switched camera height/width to getter/setter.
Use config object to define padding on border.
Clean up destroying the epistles.
Refactor VideoDisplay for clarity. Better names for objects. Flopped video image so reader sees a mirror of him/herself--which means the markers move the same way the reader does.