Improve Monitor scaling

Scaling is now done by scaling the texture rather than repeating pixels,
and the user now has buttons to adjust the scaling in-game.
Merge pull request #17 from dbent/topic/monitor_scaling

Improve Monitor scaling
Correct typo
Add download information
Merge pull request #18 from dbent/topic/update_readme

Update README
Merge pull request #19 from dbent/version/0.2.0

Version/0.2.0