relax SVN archive

The frame order generate_pivot() function can now handle no pivot being present.

At the start of this specific_analyses.frame_order.data module function, the check_pivot() function
is being called to make sure that a pivot is present.

Missing imports in the specific_analyses.frame_order.checks module.

This is from the recent pipe_name argument addition in the check_pivot() function.

Modified the frame order check_pivot() function to operate on any data pipe.

The function now accepts the pipe_name argument so that checks can happen on any data pipe.

Simplified the operation of the frame_order.select_model user function.

This is by removing the check of PCS data from the specific_analyses.frame_order.data.pivot_fixed()
function using the base_data_types() function call. This allows the model to be set up more easily.

Added printouts to the specific_analyses.frame_order.parameters.update_model() function.

This is to make it easier to understand why certain things fail due to the system not being fully
set up.

Created an initial Frame_order.test_frame_order_pdb_model_ensemble system test.

This is to check the operation of the frame_order.pdb_model user function when an ensemble of
structures is encountered. However as this uses a very minimal number of user functions to set up
the system, a number of other minor bugs will probably be uncovered.

Created set of files for the axis permutation of the torsionless isotopic cone frame order model.

Implemented the writing out of a "grace2images.py" script file, when performing auto analysis of exponential fits.

Implemented a method to automatically find dublicates of spectrum in exponential fit.

This is to ease the user intervention for error analysis, if this has been forgotten.

In the systemtest Relax_fit.test_curve_fitting_height_estimate_error(), moved the auto-detection of replicated spectra
into the manual method.

This is to prepare for auto-mated detection of replicates.