relax SVN archive

Removed the completely unused gui/res directory.

This was ancient rudimentary code and images.

Reverted r13063.

This follows a remark by Ed at:
https://mail.gna.org/public/relax-devel/2011-06/msg00150.html
Message-id: <BANLkTi=_Hw3VHk6aHzJU6e3d1inKtWOJRA@...>

The command used was:
svn merge -r13063:13062 .

Reverted r13065.

This follows a remark by Ed at:
https://mail.gna.org/public/relax-devel/2011-06/msg00150.html
Message-id: <BANLkTi=_Hw3VHk6aHzJU6e3d1inKtWOJRA@...>

The command used was:
svn merge -r13065:13064 .

Reverted r13065.

This follows a remark by Ed at:
https://mail.gna.org/public/relax-devel/2011-06/msg00150.html
Message-id: <BANLkTi=_Hw3VHk6aHzJU6e3d1inKtWOJRA@...>

The command used was:
svn merge -r13065:13064 .

Added a call for the import of the inversion-recovery code.

Modified the inversion-recovery c code to include the inversion-recovery equation.

Copied the exponential curve fitting c code as a template for the inversion-recovery code.

The command used was:
svn cp maths_fns/exponential.c maths_fns/inversion-recovery.c

Created a new branch for the implementation of inversion-recovery R1 curve fitting.

This is the first step for the corresponding task:
https://gna.org/task/index.php?7415

This follows a thread started at:
https://mail.gna.org/public/relax-devel/2011-06/msg00138.html
Message-id: <4DF8A720.9000006@...>

Adding a new test xyz file.

This is Han's patch https://gna.org/task/download.php?file_id=13224 attached to the task
http://gna.org/task/?7404.

This is a new xyz file, which contains several different models. This file should be put in the
directory: test_suite/shared_data/structures.

Better handling of the return to the initial GUI screen.

This was broken on MS Windows.