relax SVN archive

Added system tests for 5 of the frame order models.

These use synthetic alignment data (tensors) to test the model via the calc() user function. The
tests models include:
iso cone, free rotor
iso cone, free rotor (in the eigenframe)
iso cone
pseudo-ellipse, free rotor (out of frame and in the eigenframe)
pseudo-ellipse.

Big bug fix for the reduce_alignment_tensor() function - the frame order matrix was transposed!!!

The indices were back to front, so the non-symmetric frame order models were failing.

Another numerical simplification to tmax_pseudo_ellipse().

Added 3 unit tests for reduce_alignment_tensor().

daeg_to_rotational_superoperator() now operates on the Kronecker product form.

Modified the pseudo-ellipse frame order matrix point unit tests.

Reactivated the test_compile_2nd_matrix_pseudo_ellipse_order() frame order unit test.

The tmax_pseudo_ellipse() fn now handles the zero points correctly.

Large simplifications to the equations of the pseudo-ellipse frame order model.

This significantly increases the numerical stability and allows parameters to be close to zero.

Fix for the test_compile_2nd_matrix_pseudo_ellipse_restriction_test3() frame order unit test.