Update data.js ("ES5 Classes")

A classes implementation that meets the following demands:

- Correct prototype chain (incl. working instanceof)
- Easily extensible ad infinitum
- Uses constructor/initializer function (possibly inherited)
- Access to constructor and superclass
- Use as much native syntax as possible
- Useful names in devtools [only successful for named, non-inherited constructor functions]


(Thanks for a great repository!)