relax SVN archive

More path fixes for the sample scripts to allow them to run on MS Windows and Mac OS X.

This is for the relaxation dispersion R1rho_analysis.py script and the N-state model
conformation_analysis_rdc+pcs.py script. These scripts should be modified by the user for their own
data, so they should not encounter this problem when using the scripts normally.

Fix for the cpmg_analysis.py relaxation dispersion sample script.

This was reported as sr #3142 (http://gna.org/support/?3142).

The problem was that one of the paths was in the Linux/Unix format and hence if the path is not
changed by the user, then the script will not work for them if they are using MS Windows or Mac OS
X.

Fix for the Relax_disp.test_korzhnev_2005_15n_sq_data system test for certain MS Windows systems.

This was reported as sr #3142 (http://gna.org/support/?3142).

The problem was simply the lower precision of this system.

The debugging command line option no longer turns on RelaxWarning tracebacks.

These tracebacks can be separately turned on with the --traceback command line option.

Added systemtest to analyse data.

Systemtest for CPMG dataset, (http://dx.doi.org/10.1073/pnas.0907387106)
Kaare Teilum, Melanie H. Smith, Eike Schulz, Lea C. Christensen, Gleb Solomentseva, Mikael Oliveberg, and Mikael Akkea 2009
SOD1-WT at 25 C.

Added dataset for systemtest.

Systemtest for CPMG dataset, (http://dx.doi.org/10.1073/pnas.0907387106)
Kaare Teilum, Melanie H. Smith, Eike Schulz, Lea C. Christensen, Gleb Solomentseva, Mikael Oliveberg, and Mikael Akkea 2009
SOD1-WT at 25 C.

Added the matplotlib module to the Python binary and module seeking script.

Fixes for two relaxation curve-fitting system tests for Python 3.3+.

These are the Relax_fit.test_curve_fitting_height and Relax_fit.test_curve_fitting_volume system
tests which fail due to accuracy differences and a bad call to the UnitTest method assertEqaul()
which should have been an assertAlmostEqual() call.

Changed the backward compatibility hook for old state files for the spectrometer frequency.

The behaviour has been changed so that the data pipe structure spectrometer_frq_list is now sorted.
This simply allows a number of tests to pass on Python 3.3+, a user would not notice any
differences.

Added 4 more relaxation dispersion system tests to the blacklist for when C modules are missing.

This allows these 4 tests to be skipped in the system test rather than failing with "RelaxError: The
exponential curve-fitting C module cannot be found.".