relax SVN archive

Started to implement a function for reading 'R2eff' values directly.

This is as proposed in a post at:
https://mail.gna.org/public/relax-devel/2009-01/msg00020.html
(Message-id: <7f080ed10901070529s397f7f23p914c820ced4d07f@...>)

The function does not contain code yet.

Deletion of the test_parse_token_range_failx() unit test.

parse_token() no longer raises RelaxErrors with invalid range tokens (as they are assumed to be
standard string characters instead).

Modified parse_token() to allow for '-' characters in molecule names (derived from file names, etc.)

Instead of throwing a RelaxError if an invalid range is found, it is assumed that the '-' character
does not signify a range and is treated as a string character which is part of the token.

Fix for the test___residue_loop_selection() unit test.

The molecule name is now different!

Redesign of the set up of the molecule container data structures.

The file info is now set by the pack_structs() base API method rather than the MolContainer internal
object or the ScientificPython code.

Fix for the 2 test_load_pdb() unit tests. The mol name is in the mol_name variable.

Reverted r8458. The molecule name is only used as a check, it is stored by other parts of the code!

The command used was:
svn merge -r8458:8457 .

Fix for the test_load_pdb() unit test, in the check of the molecule name.

Fix for the test_atom_loop_spin_selection2() unit test, the molecule now has a name!

Fixes for the test_load_pdb() unit test.