relax SVN archive

Fix for the lib.geometry package __all__ list.

Fix for the target_functions package __all__ list.

Shifted the target_functions.vectors module to lib.geometry.vectors.

This is part of the relax library redesign.

Fix for an import of the data_store package.

Fixes for the import of the lib.geometry.rotations module.

Import fix of the data_store package.

Renamed the data package to data_store.

This is part of the relax package layout redesign.

Shifted the float module into the lib package.

This is part of the relax package layout redesign.

Renamed the maths_fns package to target_functions.

This is part of the relax package layout redesign.

Copyright updates which should have gone into r19024.