update version 1.0.1

I spent the weekend working on minor bugs that people have found. Here is the list of changes I've done this weekend:
- added clearer instructions on the activate radio
- pressing shift while not moving doesn't cause the camera to shake.
- added mouse invert button in the settings menu.
- fixed tutorial for throwing bombs to be clearer.
- added large exit sign to the exit zone.
- fixed audio continually triggering on start.
- fixed melee tutorial to delete after use.