enh: graphics.summarize_fits deleted
enh: better documentation
enh: all tests run and pass
enh: fit model refactored
bug: graphics.plot_fit correction for asr fits
BOOK: update smoothing spline figure
bug: plot_one_effects doc didnt match
enh: options of get_data added
bug: docstring formatting error
enh: added necessary files doc
bug: doc formatting
enh: refactor fit_model.fit_consistent_model to fit.fit_consistent
bug: doc correction
mid-refactor, name changes and resturcting
enh: ism asr refactored
enh: removing remains of data_model
update of todo list
bug: data_model removed from consistent_model, recursive calling
enh: variable changes
bug: recursive ism-consistent fix reverted, tests pass