relax SVN archive

Fix for the test_write_protein_sequence() unit test.

The output file format is now a little different.

Fixed the write_spin_data() from read().

The file arg must be given, and now as this is set to sys.stdout, STDOUT redirection works again.

Converted the file keyword args to read_ and write_spin_data() to normal args.

Missing import.

Modified write_spin_data() to dynamically modify the spin ID column widths if the data is too long.

Spacing fixes for write_spin_data().

Converted the load_spins() function to use relax_io.write_spin_data().

Removed all dependence on write_body() and write_header() from the sequence module.

Renamed read_spin_data_file() to read_spin_data() and write_spin_data_file() to write_spin_data().

Import fixes by shifting to relax_io.write_spin_data_file().