kickstart/phpspec - Running/Passing tests for Todo\Models

@kchunterdeluxe when you get a chance, maybe you can check out what I've got so far. You'll see some starter files I needed to create for some of the other classes.

Also, I created a BaseModel to extend rather than requiring `Eloquent` in each of our models.

Let's hold off on merging this until we get a few more commits in here.

We can push to this branch to add more commits after review/etc...