relax SVN archive

Small fix for the sample script in the NOE chapter of the relax manual.

Rewrote the relaxation curve-fitting chapter of the relax manual.

This chapter was quite out of date and was of no use to modern relax versions!

Added a higher resolution image for the 50th ENC.

Reformatting of the relax events webpage http://www.nmr-relax.com/events.html.

Updated the disclaimer for the http://www.nmr-relax.com/events.html webpage.

Added my ICMRBS 2012 poster to the relax website.

The abstract and poster will be available as links at http://www.nmr-relax.com/events.html.

Redesign of how the GPL license is presented to the user.

The old prompt.gpl module with the version 2 of the license has been deleted. Now the text form the
docs/COPYING file is passed through pydoc.pager for the './relax --licence' and the prompt mode GPL
object, and is simply printed to STDOUT for the GUI help system.

Fixes for all of the frame order unit tests for the new maths_fns.frame_order package.

Added some missing imports.

Updated the maths_fns package __all__ list.