Problem printing '%' with Text object

First I would just like to congratulate Visual 5.50 developers.  Wow!
Text and Extrusion are amazing!

However there seems to be a problem displaying the "%" character with 
text object.


from visual import *
txt = text(text="%")

Generates the following error!

Traceback (most recent call last):
   File "<pyshell#78>", line 1
     txt = text(text="%")
   File "C:\Python27\lib\site-packages\vis\primitives.py", line 687, in 
__init__
     self.paintText()
   File "C:\Python27\lib\site-packages\vis\primitives.py", line 715, in 
paintText
     spacing=self.__spacing, vertical_spacing=self.__vertical_spacing)
   File "C:\Python27\lib\site-packages\vis\shapes.py", line 854, in text
     totlen = lenctr(contours[i])
   File "C:\Python27\lib\site-packages\vis\shapes.py", line 844, in lenctr
     totlen += (vector(contour[j])-vector(contour[j+1])).mag
NameError: global name 'vector' is not defined

Also...

lab = label(text="&")

The "&" character is unprintable.
(I think I may have mentioned this for an earlier version of Visual.)

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