[Maxima] wxmaxima slows down if you have a large expression display

[Richard Fateman]

It seems that wxmaxima must re-process the whole front-end buffer before 
getting to read the new input.
This makes it very sluggish, after a while.

This might be related to the problem where display of a big section of 
"info" kills the front end entirely.

wxMaxima 0.8.0 http://wxmaxima.sourceforge.net
Maxima 5.17.0 http://maxima.sourceforge.net
Using Lisp GNU Common Lisp (GCL) GCL 2.6.8 (aka GCL)