*  Fix for the [http://www.nmr-relax.com/manual/relax_disp_cpmgfit_input.html relax_disp.cpmgfit_input user function] for when no directory is given.  This was causing tracebacks.
*  Fix for the [[LM63]] model for the [http://www.nmr-relax.com/manual/relax_disp_cpmgfit_input.html relax_disp.cpmgfit_input user function].  The grid search was incorrectly set up - the parameter is Tau, not t<sub>ex</sub>.
*  Fixes for the [[IT99]] model for the [http://www.nmr-relax.com/manual/relax_disp.cpmgfit_inputrelax_disp_cpmgfit_input.html relax_disp.cpmgfit_input user function].
*  Changed the CPMGFit grid search options for the [[IT99]] model in the [http://www.nmr-relax.com/manual/relax_disp_cpmgfit_input.html relax_disp.cpmgfit_input user function].
*  Fix for the setup of the relaxation dispersion target functions for the [[IT99]] model.