Updated to v1.1

v1.1 Change log:

- Visible edge added to game area (for users in non-windowed mode but not using entire screen)

- Quit button added to main menu

- Pause function added

- Control sensitivity enhanced

- Bug fixed where you could restart any level in progress by pressing space / return

- Scoring refactored (was a complete mess!)

- Debug mode switched off (oops)

- Web version created (not too convinced yet how well it works!)