relax SVN archive

Created the relax_disp.sherekhan_input user function.

This includes an icon for the GUI, and the full front and backends.

Created a directory and script in preparation for the relax_disp.sherekhan_input user function.

Changes to the dispersion auto-analysis write_results() method.

This is to output more of the dispersion parameters to text files and 2D grace plots.

Added the residue :71 results to the lm63_comparison file.

This is a summary of the optimisation results using the high-precision R2eff error results for the
different dispersion softwares.

Added a directory of relax results for the truncated high-precision Hansen CPMG R2eff values.

This uses the base_pipe.bz2 and r2eff_pipe.bz2 files with the high-precision R2eff errors, and hence
can be compared to the NESSY and CPMGFit results.

Fix for the phi_ex dispersion parameter scaling - the scaling was in the wrong direction.

Added parameter checks to the Relax_disp.test_hansen_cpmg_data_LM63 system test.

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.

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. These will be used to
speed up the test suite.

Fixes for the checks in the Relax_disp.test_exp_fit system test.

The r2eff and i0 spin data structure keys are now strings.