Added 'new' key to classes which you can use to instantiate them. This will from now on be the only way to instantiate classes, because using normal calls to classes is too ambiguous in my opinion. New Usage Example:
	class "Hello" {}
	local instance = Hello.new()
Added 'null' global which you can use to predefine class members. The actual global is just a string because I can't add types, but it's for convenience.
Previously refined classes are now cleaned up when you reload simploo.
Double class definitions from the same location no longer error out but are ignored (caution: symlinks will mess this up). This is so you can include files containing classes multiple times.
Fixed not being able to lookup members during alt syntax class definition, for example, this now works:
	newClass.private.food = {}
	newClass.private.food.apple = "fruit"
	newClass.private.food.burger = "meat"

	(Whereas previously it couldn't find the food table and thus was unable to add the members.)
Code refactoring.