relax SVN archive

Added the ability to have extra columns written by write_line().

Changed a variable name to avoid confusion.

This is in response to a post by Edward d'Auvergne at:
https://mail.gna.org/public/relax-devel/2008-08/msg00011.html (message ID:
7f080ed10808010103o2bc3db69r385daf7fc8c168d2@...).

Converted the write() and write_data() methods to the new design and into module functions.

Converted the diplay() method to the new design and into a module function.

Converted the copy() method to the new design (and converted into a function).

Shifted the VMD module import check into dep_check.py.

Converted the VMD code to the new relax design.

Converted the VMD class methods into module functions.

Still more removal of run arguments.

More removal of run arguments.

These changes are part of the new design.