relax SVN archive

Bug fix for the test_read() unit test.

Bug fix.

Updated all the calls to update_data_structures_spin(). Now the function arguments are passed in to
it.

Updated the test_read() user function to check all the spin relaxation data structures.

Bug fix.

Updated all the calls to update_data_structures_pipe(). Now the function arguments are passed in to
it.

Updated the test_read() user function to check the pipe relaxation data structures.

Big bug fix for generic_fns.sequence.read().

If 2 or more sequential residues had the same name, only the first would be added to the sequence!

Improvements to the test_read_protein_noe_data() unit test.

Now the entire Ap4Aase sequence is checked to see if it has been read in correctly.

Renaming of the update_data_structures() functions.

The functions have changed to:
update_data_structures() -> update_data_structures_spin()
update_global_data_structures() -> update_data_structures_pipe()

Converted specific_fns.relax_data.update_data_structures() to the new relax design.

Bug fix for the relax_data.read() user function.

The default values for the keyword arguments res_num_col and spin_num_col, and for res_name_col and
spin_name_col, were set to the same thing.