0.2.1: Fixes to compile with gcc-3.4. 
       Minor changes :)

0.1.10: (only Example for ChangeLog for a future Version)
	D (design)
	  B (basic implemention)
	    I (implemention of variants)
	      T (tests)

	
0.1.9: 	first version of the new design

a general list of all systems / to do list:

	Meaning of the following notes:
	  X: Done
	  Y: Nearly done
	  +: In Work
	  -: Not started
	
	D (design)
	  B (basic implemention)
	    I (implemention of variants)
	      T (tests)

	X X X Y	data types
	Y - - -	  Lists
	X X + +	solving system
	X X X +	  Operands
	X X + +	  Operators
	Y - - -	    multiple solution Operator
	X X + +	  Solvers
	Y - - -	    explicite Solver / References
	+ - - -     References from/to Lists
	Y - - -	    multiple solution Solver
	X X X +	priority system
	X X + +	data tree
	X X + +	  general node
	X X X +	  return system
	+ - - -	  dynamic return system
	+ + + -	output filter
	Y Y + -	  RAW 
	+ + + -	  POV 
	+ + + -	input filter
	+ + + -	  ADL 
	X X + +	animation functions
	X + + -	  Object
	X + + -	    movements
	X + + -	      move
	X + + -	        straight
	X - - -	        circle
	Y - - -	        bezier
	+ - - -	        spline
	- - - -	    rotations
	- - - -	      rotate
	- - - -	      inverse kinematics
	- - - -	    scalations
	+ - - -	    mixed
	+ - - -	      3 component system
	X X + -	  Scalar
	X X Y +	    linear
	X - - -	    accelerated
	+ - - -	  Vector
	+ - - -	  String

