Remove deprecated options

Skip integral tests
Refactor

- Make private methods
- Divide `process` and `detect` methods
- Options now have `name` and `accepts` properties
Keep configured options and handlers separate

Add method `Comb#getValue(optionName)` to get option's value for a particular
class instance.
Use this new method to get option's value inside options' `process()` methods.
Remove "best guess" logic from options