relax SVN archive

Modified frame_order.domain_to_pdb() to remove the file ending if given.

This allows the structure to be rotated in pymol.

Created the frame_order.domain_to_pdb() user function to associated PDB files with domains.

This will be used to rotated the moving domain to the average position within pymol.

Rewrote frame_order.cone_pdb() to handle all of the frame order models.

The start_res arg to create_cone_pdb() is now actually the number of the starting residue of the cone.

Modified the pymol.cone_pdb() user function to handle x, y, and z-axes.

Modified create_cone_pdb() to accept a pre-made structural object and to create a file only when asked.

Switched the names of the Pseudo_elliptic and Pseudo_elliptic2 classes.

Bug fix for the frame_order.pivot() user function - it is now functional.

The base contents of the relax data store are no longer saved with a call to results.write().

More fixes for the torsionless isotropic cone frame order model.