objects are limited to size 256 
	this mostly limits the text (char) size of methods - to 512 chars.
	this could be fixed by changing memory.c.

radices other than 10 aren't implemented.

The parser doesn always do literal arrays correctly, in particular, I
	think negation signs on numbers aren't recognized within arrays.
	(should be reorganized in the parser).

parser should leave method text in method, so it can be edited dynamically
(does this now, but it should be an option, to save space on small
systems).

The collection hierarchy has been completely reorginized (this isn't a bug)
	many of the more obscure messages are left unimplmented.
	many of the abstract classes are eliminated
	Bags have been eliminated (they can be replaced by lists)
	collections are now magnitudes (set subset relations)

The basic classes are somewhat incomplete, in particular
	points aren't implemented
	radians are implemented (neither are trig functions)

Bytearrays are a bit odd.  In particular,
	converting to bytearrays gives something too big (by twice)
	converting bytearrays to strings can cause bugs if the last
	byte is not zero (causing non null terminated strings)

Semaphores and processes aren't implemented yet - even in the multiprocess
	version
	initial experiments aren't encouraging - 
	they seem to be too slow.
	
PROJECTS______________________________________________________________
For those with time on their hands and nothing to do, here is a list
of several projects that need doing.

1. Profiling indicates that about 45% of execution time is spent in the
routine ``execute'', in interp.c.  Rewrite this in your favorite assembly
language to speed it up.

2. Rewrite the memory manager.  Possible changes
	a. use garbage collection of some sort
	b. allow big objects (bigger than 256 words)

3. Rewrite the process manager in assembly language, permitting the
	Smalltalk process stack to exist intermixed with the C
	execution stack.

4. Port to your favorite machine, making the interface fit the machine.
	Make sure you send me a diff script of any changes you made,
	so I can incorporate them into the next release

5. Lots of extensions could stand implementing, such as
	infinite precision numbers
	semaphores and processes
