relax SVN archive

The lower, upper, and inc args to grid_search() are no longer stored in the class instance.

Changed a few of the arguments of the N-state model grid_search() function.

The 'print_flag' arg has been renamed to 'verbosity' and the 0/1 args have been converted to
True/False args.

Changed a few of the arguments of the N-state model minimise() function.

The 'print_flag' arg has been renamed to 'verbosity' as it really isn't a flag. And the 0/1 args
have been converted to True/False args.

Added code to fetch the initial parameter vector.

Adapted, for the consistency_tests code, 2 more RSDM unit tests for the setting of parameters.

dapted, for the consistency_tests code, 5 more RSDM unit tests for the setting of parameters.

Adapted, for the consistency_tests code, 4 more RSDM unit tests for the setting of parameters.

Adapted, for the consistency_tests code, 5 more RSDM unit tests for the setting of parameters.

Corrected a typo.

Adapted, for the consistency_tests code, 3 more RSDM unit tests for the setting of parameters.