relax SVN archive

Simplifications to the file dialog code.

This corresponds to one component of the patch_II file attached to https://gna.org/task/?6847 by
Michael Bieri (https://gna.org/users/michaelbieri).

Shift of the GUI calculation code to using the relax API (rather than scripting).

This corresponds to one component of the patch_II file attached to https://gna.org/task/?6847 by
Michael Bieri (https://gna.org/users/michaelbieri). See the thread starting at
https://mail.gna.org/public/relax-devel/2009-11/msg00045.html, specifically the details in
https://mail.gna.org/public/relax-devel/2009-11/msg00056.html.

This includes a large rearrangement of the model-free code, which could not be separated from the
shift to the relax API.

Shifted from using msgbox() to relax_run_ok() to indication proper completion of the calculation.

This corresponds to one component of the patch_II file attached to https://gna.org/task/?6847 by
Michael Bieri (https://gna.org/users/michaelbieri).

Removed an event.Skip() call.

This corresponds to one component of the patch_II file attached to https://gna.org/task/?6847 by
Michael Bieri (https://gna.org/users/michaelbieri).

Expansion of exec_model_free() in preparation for rearrangements in the calc_modelfree module.

This corresponds to one component of the patch_II file attached to https://gna.org/task/?6847 by
Michael Bieri (https://gna.org/users/michaelbieri).

Modified how the r1_list and r2_list data structures are handled.

This corresponds to one component of the patch_II file attached to https://gna.org/task/?6847 by
Michael Bieri (https://gna.org/users/michaelbieri).

relax execution now occurs automatically after clicking on the icon.

This corresponds to one component of the patch_II file attached to https://gna.org/task/?6847 by
Michael Bieri (https://gna.org/users/michaelbieri).

Previously a confirmation was required.

Expanded the print out when exiting to include references and shifted to using question().

This corresponds to one component of the patch_II file attached to https://gna.org/task/?6847 by
Michael Bieri (https://gna.org/users/michaelbieri).

The print out will need a bit of formatting, and it would be better if the question() box is
eventually removed as asking the user if they would like to quit after the user asked the program
to quit is annoying.

Added actions for the new menu entries.

This corresponds to one component of the patch_II file attached to https://gna.org/task/?6847 by
Michael Bieri (https://gna.org/users/michaelbieri).

Comment improvements throughout relax_gui.

This corresponds to one component of the patch_II file attached to https://gna.org/task/?6847 by
Michael Bieri (https://gna.org/users/michaelbieri).