relax SVN archive

Converted the residue specific data container into the molecule list 'mol' in the pipe container.

The old residue specific container was located at 'self.relax.data.res' whereas the molecule list
object is located at D[pipe].mol where D is the relax data storage singleton.

Deleted the unused Data.__init__() method.

incorrect interpretation of test_module corrected, unit tests work from
relax command line again

Addition of the molecule-residue-spin data classes.

The following classes have been created:
MoleculeList
MoleculeContainer
ResidueList
ResidueContainer
SpinList
SpinContainer

These were modified from the original Residue and ResidueList classes.

Converted the global minimisation statistic objects from empty dictionaries to None.

Converted the 'run_types' array to the variable 'pipe_type'.

Removed the 'run_names' object from the PipeContainer.

Renamed the PipeContainer object 'pdb' to 'structure'.

Bug fix.

Removed the call to getattr for 'add' to prevent a recursion issue.

Updated the __repr__ method of the PipeContainer object.