relax SVN archive

Added new arguments and improved the spectrum.read_intensities() docstring.

The mol_name_col, res_num_col, res_name_col, spin_num_col, spin_name_col, and sep args have been
added to support the generic intensity file format. This format has also had a description in the
docstring written.

Switched from calls to noe_obj to generic_fns.intensity.

Fixed docstrings and user function print outs.

Deletion of the format argument from the spectrum.read_intensities() user function.

To compensate for this, relax will be modified to auto-detect the file format.

Renamed spectrum.read() to spectrum.read_intensities().

Docstring updates for spectrum.read().

Renamed 'spectrum_type' to the more generic 'spectrum_id'.

Deleted the old NOE user function class from the interpreter namespace.

Renamed the class in the old prompt.noe module.

Renamed the noe module to spectrum.

The noe module only contains user functions will are to be merged into the spectrum user function
class, hence will be deleted anyway.