relax SVN archive

A few fixes to the noe.py sample script, and removal of the 'name' variable.

Updated the relax_fit.py sample script to the new design (no more run args).

Updated the relax_fit.py sample script to use the new structure.load_spins() user function.

Updated comment about pipe creation in the noe.py sample script.

Removed all the run args to the user functions in the noe.py sample script.

Updated the noe.py sample script to use the new structure.load_spins() user function.

Bug fix in the test_opendx_theta_phi_da() system test.

The load_seq arg to the structure.read_pdb() user function no longer exists.

The position vector is added to the SpinContainer in the load_spins() function.

Created the test_load_protein_asp_atoms_from_pdb() system test.

This tests the loading of all aspartic acid atoms from the single residue in a loaded protein PDB
file.

Bug fix in the Scientific Python PDB object atom_loop() generator method.

The atom name is now returned rather than the element type!