*  Created a sample script for BMRB data deposition.
*  The relax data store is_empty() method now only prints to STDERR if the verbosity flag is set.
*  Changed the behaviour of the generate_spin_id() and generate_spin_id_data_array() functions.  This is a large change affecting many parts of the code base.  The problem that this solves is the incorrect usage of the '&' character in spin IDs, tripping up on the powerful Selection object of [http://gna.org/users/macraild Chris MacRaild].  For example, the spin ID ':2&:Glu' cannot be correctly handled.  This actually matches all residues with the number 2, and all residues with the name 'Glu'.
*  The scons 'clean' target now removes *.pyo files as well.
<section end=changes/>