Made so player speed is applied in forces not in linearvelocities
Testing around with a new platform WARNING: don't load lvl 3
Started on a UpgradesManager class
Updated gitignore with gradle.
Minor refactoring
Merge from refactor branch
Added death screen
Made a new prototype 4.lvl
Changed lvl to 4 and raised players maxspeed
Updated DeathScene and GameScene
Removed annoying syso
Made atlas bigger
Added a new music file
Updated lvl 4
Revamped players maxspeed
Implemented the new music
Now player can't fly, but still buggy
Merge branch 'feature' into feature

Conflicts:
	src/se/chalmers/segway/scenes/GameScene.java
Renamed segwaybackwards
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