relax SVN archive

Fix for the test_tm2_grid() system test - the correct values of the correlations times are being checked.

Bug fix for the module for back-calculating relaxation data from model-free parameters.

The heteronucleus was being ignored when calculating the 5 frequencies of the spectral density
function.

Set the initial param values of the test_tm2_grid() system test to the real ones.

The model-free system test value_test() method is now checking the local tm value from a number of tests.

Created the system test for checking the tm2 grid of model-free parameters.

Added some more local_tm_10_S2_0_8_te_40 system tests, but this time randomising the Ri data loading.

Shifted all the model-free system test scripts into test_suite/system_tests/scripts/model_free/.

Created all the relaxation data for the tm2 model-free grid.

Added a directory for holding relaxation data from a grid of model-free values.

Fix for the test_local_tm_10_S2_0_8_te_40() system test.

The te value should be sent in a ps units.