relax SVN archive

Added "test_m61" to __init__.py in unit test directory.

Added the 8th unit tests demonstrating edge case 'no Rex' failures of the model 'DPL94'.

This follows from the ideas in the post http://article.gmane.org/gmane.science.nmr.relax.devel/5858.
This is related to: task #7793: (https://gna.org/task/?7793) Speed-up of dispersion models.

This is to implement catching of math domain errors, before they occur.

These tests cover all parameter value combinations which result in no exchange:

- kex = 1e20,

Updates for some of the frame order system tests for the rotation matrix pre-calculation change.

As the rotation matrix is being pre-calculated, one consequence is that the Sobol' angles are now
full 64-bit precision rather than 32-bit. Therefore this changes the chi-squared value a little,
requiring updates to the tests.

Small speed up for the frame order target functions for most models.

The rotation matrix corresponding to each Sobol' point for the numerical integration is now
pre-calculated during target function initialisation rather than once for each function call.

Preformed a frame order analysis on the 2nd CaM free-rotor model test data.

This is to check that everything is operating as expected.

The minimisation verbosity flag now effects the frame order RelaxWarning about turning constraints off.

Added 8 unit tests demonstrating edge case 'no Rex' failures of the model 'M61'.

This follows from the ideas in the post http://article.gmane.org/gmane.science.nmr.relax.devel/5858.
This is related to: task #7793: (https://gna.org/task/?7793) Speed-up of dispersion models.

This is to implement catching of math domain errors, before they occur.

These tests cover all parameter value combinations which result in no exchange:

- dw = 0.0,
- pA = 1.0,
- kex = 0.0,
- dw = 0.0 and pA = 1.0,
- dw = 0.0 and kex = 0.0,
- pA = 1.0 and kex = 0.0,
- dw = 0.0, pA = 1.0, and kex = 0.0.
- kex = 1e20,

Deleted unit test case for lm63 3site.

Increased the precision of the chi-squared value testing in the CaM frame order system tests.

The check_chi2 method has been modified so that the chi-squared value is no longer scaled, and the
precision has been increased from 1 significant figure to 4. All of the tests have been updated to
match.

Updated the 2nd CaM free-rotor frame order system tests for the correct average domain position.

The chi-squared values are now significantly lower.