GNU Smalltalk math bugs

[David G. Pickett]

Running gst on Linux, the blizzard of math errors and invalid exceptions 
is a real disgrace.  Just entering numbers makes it disgrace itself:

dgp@dgp-p6803w:~
$ (cd smalltalk-3.2.91 ; ./gst)
GNU Smalltalk ready
st> 1.234567890q0
1.23456789
st> 1.23456789123456789q0
1.253
st> 1.2345678987654321d0
1.23456789876501
st> 1e-4
0.00001
st> 1e-5
0.0000063715563
st> 1e-3
0.001
st> .1d0
stdin:7: expected expression
st> 0.1d0
0.1
st> 1.23456789123456789d0
1.35236
st>