Re #9777. Giving DSFinterp1DFit the right filename.
Re #9777. Removing old wiki docs that got moved to rst.
Re #9777. Finishing off file rename
Re #9777. First pass at an attributes directive.
Re #9777. Adding attributes tags to fit functions.
Re #9777. Allowing attributes directive to have content.
Merge remote-tracking branch 'origin/feature/9777_fitfunc_attributes'