Fix bug with gravity being lost after menu

Global/BodyPartLoader.gd

@@ -4,5 +4,5 @@ var bodyparts : Dictionary
 
 # Called when the node enters the scene tree for the first time.
 func _ready():
-	bodyparts["Arm"] = load("res://BodyParts/Arm.tscn")
-	bodyparts["Humanleg"] = load("res://BodyParts/HumanLeg.tscn")
+	bodyparts["Human Arm"] = load("res://BodyParts/HumanArm.tscn")
+	bodyparts["Human Leg"] = load("res://BodyParts/HumanLeg.tscn")