Pryan

			 	   HISTORY

03 Jan. 1997: starting of developments

01 Feb. 1997: complete modification of the kernel, add GL display lists

25 Apr. 1997: first public release: Pryan 1.0

27 Apr. 1997: add Nurbs curve & surface and Profile (working only for OpenGL 
	      not for Mesa 2.2 currently, so not added in release).
	      add more objects read from input stream

29 Apr. 1997: add Bezier curve & surface
              fix bug in SoState: increase hash table because there are 
	      too many registered objects now!

30 Apr. 1997: Release of Pryan 1.2
	      add texture mapping (working good for spheres, behaving strangely
              for other shpaes: need to add TextureCoordinate node 
	      and projectors/evaluators.