relax SVN archive

A few small edits of the relaxation curve-fitting chapter.

This is to reinforce the exact time of the relaxation time period.

Added some text to explain why test only J(0) is discussed whereas the script also calculated F_R2 and F_eta.

This was suggested by Edward d'Auvergne in a post at:
https://mail.gna.org/public/relax-devel/2012-09/msg00044.html
(Message-id: <CAED9pY9U46ga6_j245peX1ETNZc_Lw0f5cz+5xx5rGVhee29YA@...>)

Big clean up of the Bibtex bibliography file for the relax user manual.

Small edits of the consistency testing figure caption in the relax user manual.

Editing and a number of fixes/cleanups for the consistency testing chapter of the user manual.

Editing of the "Values, gradients, and Hessians" chapter of the user manual to make it fit better.

The context of this chapter has been specified by changing the title to "Optimisation of relaxation
data -- values, gradients, and Hessians" and the intro text has been updated. As this chapter is no
longer straight after the model-free chapter, this is needed.

Fixed the newlines in the sample script in the consistency testing chapter.

Fixed the bounding box for the consistency testing figure and also fixed some Latex unfriendly code...

Problems were spotted by Edward d'Auvergne in a post at:
https://mail.gna.org/public/relax-devel/2012-09/msg00039.html
(Message-id: <CAED9pY9pucoVrGzDvKs0u6hdUb94-Db8ixvno7MFN1QZsQDonA@...>)

Fixed a bibliography entry label problem.

This was spotted by Edward d'Auvergne in a post at:
https://mail.gna.org/public/relax-devel/2012-09/msg00040.html
(Message-id: <CAED9pY-pvtpE69tqXqb30fj9aWL1_wU8yaM4u44rMXY1LEQbag@...>)

Made a small correction to a reference such that a superscript is correctly displayed.