Player controls

Allows the player to jump on the space bar and move left/right on the
arrows. Also simple graphics have been added.
Camera follows player

The camera now follows the player.
Additionally the player have collision detection for objects placed
left or right to him.
Merge branch 'Main_character'

Conflicts:
	Unity/Assets/Scripts/PlayerController.cs
	Unity/Assets/Scripts/PlayerPhysics.cs
	Unity/Assets/test_scene.unity