Added missing grid line on far-right
Added difficulty and grid box margin

Difficulty implemented, but no way to select it yet.
set default difficulty

Set to easy for testing
Added new win and loading strings
Blue background!
Cosmetic changes
More cosmetic changes

Changed padding for higher difficulties.

More global variables, they'll need refactoring.
Merge pull request #2 from nickudell/BleedingEdge

Nightly pull