[Cairo] Lindenmayer System update

[Jesse Andrews]

Hi,

I have update the LSystem for python-cairo at

http://tux4kids.net/~jdandr2/cairo/

The tree/plant work now (i.e. I corrected my algorithm so save/restore 
work!)

plant: f->f[+f]f[-f]f
tree: f->ff+[+f-f-f]-[-f+f+f]

key:

##################################
#                                #
#  f == forward                  #
#  [ == ctx.save()               #
#  ] == ctx.restore()            #
#  + == rotate clockwise         #
#  - == rotate counterclockwise  #
#                                #
##################################

Screenshots on site.

[I'll work in Cairo's CVS once I have time to get that set up]

Jesse