relax SVN archive

Removed the check of the default values from the specific analysis API arg checks.

The defaults keyword values can be set to anything by the specific code!

Alphabetical ordering of methods, and separation of the private from the API methods.

Clean up of the entire NOE API.

Removed duplicated epydoc tags.

Docstring and default arg changes.

Alphabetical ordering of methods, and separation of the private from the API methods.

Fixes for the relaxation curve fitting API.

The fixes are for the return_data_name(), return_grace_string(), and return_units() methods.

Docstring update to return_grace_string().

Clean up of the create_mc_data() API method across the board.

The spin_id keyword is now accepted by all, and is a keyword.

Converted the _select_model() method to be private, removing it from the API.