Proper Arrow code release

[Brian Rice]

As promised, I fixed up the problems with the last set of code. 
First, the halting when you load the code initially has been fixed, 
and as well, I discovered that I hadn't handled the Mac to Unix text 
formatting conversion properly, and fixed that as well. Some other 
internal changes were made that are minor.

As of now, I'll be sending out code in this pre-packaged format which 
most people should find very simple to deal with.

I will put together all of my arrow code releases into this directory:
http://www.tunes.org/~water/arrow until arrow.cx is back up and 
running. (Or maybe arrow.tunes.org).

Within that directory, you have two options. First, the most 
compatible option among Squeak variants is to take some 2.X version 
of Squeak (2.9 or later if you don't have Weak collections filed 
in.), and file in http://www.tunes.org/~water/arrow/ArrowLogic.13.cs 
and then load as a file 
http://www.tunes.org/~water/arrow/ArrowTests.text . The latter is not 
used by Squeak itself; I merely used it to test some of my classes 
and keep track of developments.

If you are new to Smalltalk or Squeak, then this latter approach will 
help out, although it requires you to get the newest version of 
Squeak. http://www.tunes.org/~water/arrow/Arrows.pr is a Squeak 
Project. When you get a Squeak 3.1 installation (which I will explain 
how to do), you can load this project from the file using the desktop 
menu directly. Versions earlier than 3.1 do not handle projects 
correctly, and so regrettably this means you have to get the latest 
Squeak. (However, I believe that 3.1 is significantly better than 
earlier versions for ease of use and clarity.) At any rate, to get 
3.1, download the appropriate platform's files from:
ftp://st.cs.uiuc.edu/pub/Smalltalk/Squeak/3.1_alpha/

This also requires you to get the Squeak 3.0 sources file at:
ftp://st.cs.uiuc.edu/pub/Smalltalk/Squeak/3.0/files/SqueakV3.sources.gz

Unpack everything into a single directory and execute the VM so that 
it picks the right image on its own.

The benefits of using the Project format is that it loads up a 
desktop environment for Squeak which highlights various interesting 
bits about Arrow code in the way that I happened to set it up. I have 
more code to work on which will take a little time, but for now it 
will be worthwhile to look through the documentation at the very 
least for the code.

Please bring up any question, no matter how small. Note that the 
primary Squeak site http://www.squeak.org is down. Use 
http://squeak.cs.uiuc.edu instead. Also of course I am interested to 
know what people think so far.

Thanks,
~