Merge pull request #6 from Corm/master

Saving/loading works
Updated gitignore
Removed extra stat
Added Toast class. Not tested yet
Short message appears when you save and load

+ Added a Toast class. Used to make messages that expire after a certain
amount of time.

+ Added a toast() method to the UserInterface class that lets you pop a
quick message onto the screen. Use like: self.ui.toast("Hello there")