relax SVN archive

Renamed the invalid variable name 5D_vector to vector_5D.

Imported some of the RDC functions.

Created maxA() for finding the maximal alignment or the Azz component in the alignment frame.

Fixes for the to_tensor() function. The tensor was completely wrong.

Modified the to_tensor() to be more efficient by working only with numpy arrays.

Created the to_5D() function for converting from matrix form to 5D vector form.

Some fixes for the to_tensor() function. The elements Ayx, Azx, and Azy were being referenced!

Created the to_tensor() function to convert from 5D vector to 3D matrix.

Docstring fix for average_rdc_5D(). The XH vectors must be unit vectors!

Created the average_rdc_tensor() function.

This is equivalent to the average_rdc_5D() function but takes the full tensor in numpy matrix form
rather than the elements of the 5D vector.