[PythonCAD] TextBlock attribute changes now at repo

[Art Haas]

Hi.

I've sent my latest batch of changes to the repo. Now, adjusting the
various TextBlock attributes can be done 'select->act' and
'act->select'. The next challenge will be dealing with adjusting
Dimension attributes, and probably adding code to adjust DimString
attributes as well. Subversion users just need to 'svn update' to
get the changes.

Art
-- 
Man once surrendering his reason, has no remaining guard against absurdities
the most monstrous, and like a ship without rudder, is the sport of every wind.

-Thomas Jefferson to James Smith, 1822