local scope for ALL the things!
It's Sunday. We're not prototyping anymore.
Merge remote-tracking branch 'tim/master' into tim-changes

Conflicts:
	heisengame.love/main.lua
Merge pull request #6 from jwiggins/tim-changes

Tim changes
Bunch of small stuff

- Collision grid on by default and magenta!
- Characters not placed randomly anymore
- Character coordinate system now matches the window.
Place the characters using tile coordinates!
Player collision with the map!!!
Add a "win" condition.