v0.2 Development / 0.3 features

Things are going well on the development of 0.2. I'm finishing up the GUI at the moment, a release can be expected within the month.

I've also had a couple of suggestions for 0.3 features:

- Hint system (only find one more value, then stop)
- Generate sudoku system (implement a function to generate sudokus, with difficulty setting)
- A brute solve method (a last resort for those really hard buggers)

A code cleanup will also be necessary, as well as optimizing the validator algorithm, which is in a pretty rough stage at the moment.

Greetings, Forceflow.