*  Fixes for the backend of the [http://www.nmr-relax.com/manual/relax_disp_plot_exp_curves.html relax_disp.plot_exp_curves user function].  This code needed to be updated for the major changes in the relax_disp branch.
*  Fixes for the checks in the Relax_disp.test_exp_fit system test.  The r2eff and i0 spin data structure keys are now strings.
*  Two class variables have been added to the dispersion auto-analysis for fast optimisation.  This includes variables for the function tolerance and maximum number of iterations, and matches those of the model-free auto-analysis of the dauvergne_protocol module[d'Auvergne and Gooley, 2007][d'Auvergne and Gooley, 20082008b].  These will be used to speed up the test suite.
*  Speed up of the system tests using Flemming Hansen's CPMG data.  The grid search increments, function tolerance and maximum number of iterations have all been made looser.
*  Added parameter checks to the Relax_disp.test_hansen_cpmg_data_LM63 system test.
* [*d'Auvergne and Gooley 2006] d'Auvergne, E. J. and Gooley, P. R. (2006).  Model-free model elimination: A new step in the model-free dynamic analysis of NMR relaxation data.  ''J. Biomol. NMR'', '''35'''(2), 117-135. (DOI [http://dx.doi.org/10.1007/s10858-006-9007-z 10.1007/s10858-006-9007-z]).
* [*d'Auvergne and Gooley, 2007] d'Auvergne, E. J. and Gooley, P. R. (2007).  Set theory formulation of the model-free problem and the diffusion seeded model-free paradigm.  ''Mol. BioSyst.'', '''3'''(7), 483–494. (DOI: [http://dx.doi.org/10.1039/b702202f 10.1039/b702202f).
* [*d'Auvergne and Gooley, 20082008b] d'Auvergne, E. J. and Gooley, P. R. (2008).  Optimisation of NMR dynamic models II.  A new methodology for the dual optimisation of the model-free parameters and the Brownian rotational diffusion tensor.  ''J. Biomol. NMR'', '''40'''(2), 121-133. (DOI: [http://dx.doi.org/10.1007/s10858-007-9213-3 10.1007/s10858-007-9213-3]).
* [*Davis et al., 1994] Davis, D. G., Perlman, M. E., and London, R. E. (1994). Direct measurements of the dissociation-rate constant for inhibitor-enzyme complexes via the T1rho and T2 (CPMG) methods.  ''J. Magn. Reson.'', '''104'''(3), 266-275. (DOI [http://dx.doi.org/10.1006/jmrb.1994.1084 10.1006/jmrb.1994.1084]).
* [*Ishima and Torchia 1999] Ishima, R. and Torchia, D. A. (2005).  Error estimation and global fitting in transverse-relaxation dispersion experiments to determine chemical-exchange parameters.  ''J. Biomol. NMR'', '''32'''(1), 41-54. (DOI [http://dx.doi.org/10.1007/s10858-005-3593-z 10.1007/s10858-005-3593-z]).