relax SVN archive

The idea of this system was suggested in two threads which commence at:
https://mail.gna.org/public/relax-devel/2006-08/msg00052.html
https://mail.gna.org/public/relax-devel/2006-08/msg00053.html

Essentially a rudimentary framework for replacing the entire Error and Warning system has been set
up. Many essential elements are missing (for example the warning function, tracebacks, etc)
however it shouldn't take long to add these. This new system significantly simplifies the
RelaxError/RelaxWarning system, allows easy implementation of the --ignore-errors and --pedantic
command line flags (https://mail.gna.org/public/relax-devel/2006-08/msg00052.html), and allows fine
tuning of how RelaxErrors and RelaxWarnings are handled within the different relax user interfaces
(UIs).