Merge pull request #8 from ethosrot/master

masking outside view
Remove tabs and global functions.
Add some special tiles that aren't controlled by STI
Flip special tiles on when they're being looked at.
Merge pull request #9 from jwiggins/feature/special-tiles

No time for feature branches...
Clear the stencil when drawing you win
Add build makefile
Add nice looking art!
Add a screenshot.
Merge pull request #10 from pib/master

Add build makefile
woo party done