v1.3.1

Added the following to autoplot_tally_results():

• additional_save_extensions input argument, allowing for saving of plots in additional file formats permitted by matplotlib.pyplot.savefig()
• max_num_values_to_plot input argument, controlling maximum tally size to be plotted (was previously an internal variable to the function)
• rasterizesize_threshold and rasterize_dpi input arguments, controlling maximum tally size before rasterization is employed in plotting and the DPI to be used in such instances (were previously internal variables to the function)

Furthermore, the behavior of the autoplot_tally_output argument for parse_tally_output_file() and parse_all_tally_output_in_dir() has been changed slightly. Now when set to True, in addition to generating the PDF(s) of the plot(s) as before, PNG(s) will also be generated (achieved by setting additional_save_extensions = ['.png'] in the autoplot_tally_results() call).