relax SVN archive

Updated all of the CaM frame order test data optimisation scripts for the align_tensor.init changes.

Fixes for the unit tests for the align_tensor.init user function changes.

The align_tensor user functions now use the align_tensor.get_tensor_ids() function.

They were previously using align_tensor.get_ids() and returning the alignment IDs, causing failures
in a number of GUI tests.

The rdc and pcs user functions now use align_tensor.get_align_ids() rather than get_ids().

This is a fix for the rename in the previous commit.

Renamed get_ids() to get_align_ids() and created get_tensor_ids().

This is to allow the retrieval of either tensor or alignment IDs separately.

Updated the system tests for the align_tensor.init user function changes.

Updated the 2-domain N-state model sample script for the align_tensor.init changes.

Fixes for the align_tensor.init user function back end to allow the tensor ID to be optional.

The alignment tensor list object add_item() method now returns the new alignment tensor.

Redesigned the align_tensor.init user function.

This is to better handle multiple tensors per alignment (and/or per domain). The tensor ID is now
optional and the alignment ID must be supplied. The order of the arguments has also changed so all
the IDs (tensor, alignment, and domain) are at the start. The function
generic_fns.align_tensor.get_tensor_object_from_align() has been added to handle the retrieval of
alignment tensors without a tensor ID or name.