relax SVN archive

Added a relaxation dispersion model profiling log file for relax version 3.2.2 vs. 3.2.1.

This is the output from the dispersion model profiling master script. It shows that the relax 3.2.2
release did not in fact feature "a large speed up of all analytic relaxation dispersion models" as
described in the release notes at https://gna.org/forum/forum.php?forum_id=2465. For the CPMG
models there is a 1 to 2 times increase in speed. But for the R1rho models, there is a 1 to 2 times
decrease in speed.

Modifications to the dispersion model profiling master script.

The info.print_sys_info() function of the current relax version is being called at the start to show
all information about the current system. This is useful to know the speed of the machine, the OS,
the Python version and numpy version. The numpy version is important as future versions might
optimise certain functions that are currently very slow, hence that could be a cause of model speed
differences.

In addition, the path variables path1 and path2 have been renamed to path_new and path_old to make
it clearer which is which. And the individual profiling scripts are no longer copied to the base
directory of the relax versions being compared, and are run in place.

Hack to permanently eliminate the ^[[?1034h escape code being produced on Linux systems.

This is produced by importing the readline module. The escape code will be sent to STDOUT every
time relax is executed, so it will be present in all log files. The problem is the TERM
environmental variable being set to 'xterm'. The hack simply sets TERM to an empty string.

The 'relax -v' command is now used for the dispersion model profiling script initial printout.

This is to show the two different relax versions being compared.

Added a relaxation dispersion model profiling log file for relax version 3.2.1 vs. 3.2.0.

This is the output from the dispersion model profiling master script. It shows a 2.2 times increase
in speed for the B14 and B14 full models, with all other models remaining at the same speed. This
matches the changes for relax 3.2.1 (https://gna.org/forum/forum.php?forum_id=2462), the main
feature of which is a major bugfix for the B14 models.

Removed a tonne of unused imports from the dispersion model profiling scripts.

This is to allow most of the scripts to run on the relax 3.1.x versions, as well as to clean up the
scripts. The unused imports were found using the command:

pylint test_suite/shared_data/dispersion/profiling/*.py --disable=all --enable=unused-import

Fix for a mistake introduced in the previous commit (r24252).

The printout of copied files was incorrect.

Improved the relax version printouts for the dispersion model master profiling script.

This now reports both relax versions.

Improved how the relax installation path is determined in the status object.

If the path cannot be found, the current working directory is then checked if it is where relax is
installed. This is needed when importing modules outside of relax.

Implemented profiling script for LM63, 3 site.

Task #7807 (https://gna.org/task/index.php?7807): Speed-up of dispersion models for Clustered analysis.