Documentation guide (writely)

I made some major changes to the document today to start moving it  
toward the guide I see it as.  Just wanted to call attention to it so  
that people could offer comment.  I'd like to flesh out the stdlib- 
doc instructions more still and maybe reword some of the guidelines.   
But that will take some time.  I also need to test the command I  
provided for checking out the 1_8 branch.  I just got it from a CVS  
tutorial.

I haven't published it yet, so I don't think anyone not associated  
with the writely document can view it.

-Mat