[Axiom-developer] changes

[daly]

1) The axiom.sty is under revision control because it is needed early
   in the process, as are most of the things in the scripts directory.
   Perhaps the need has gone away over time but i doubt it.

2) bookvol1 was published "standalone" so it did not depend on 
   .sty files which are not in the standard latex distro. The
   axiom.sty file is not standard so the commands were put into the file.

3) I don't like the idea of additional .sty files either. Some of the
   commands I've needed from other .sty files have migrated into 
   axiom.sty. This will allow us to have all of the functionality for
   our "standard" files. Using \providecmd allows people to use other
   .sty files without errors.

   However, in some files I've been documenting I need to do things 
   like draw diagrams using special purpose packages. For instance,
   I'm documenting the octonions now and there is a "standard"
   octonion triangle that I'm drawing with xypic. Eventually I'll
   make it into a .ps file and we can remove the include.

Tim