Localized Down Function to "s" Key

S key now makes mover go down, and no other key performs this function.
However, the artificial gravity does not exist anymore.
Added Bug Report

Renamed Bug Report as well
Update
Update 2
Update 3
Update 4
Update 5
Merge remote-tracking branch 'origin/master' into Diya/Game-Tester-Work

Conflicts:
	Documentation/Bug Report.docx
	Obstacle_Game/Mover_Class.pde
	Obstacle_Game/Obstacle_Game.pde
Added More Realistic Jump

Next Step: Play with numbers
Merge remote-tracking branch 'origin/Diya/Game-Tester-Work'

Conflicts:
	ObstacleGame/Mover_Class.pde