Factored out adjust_y_from_hints function and fixed minor 0 vs None bug
Factored out find_simple_bounding_box and adjust_y_from_thresholding
Changed signature of adjust_y_from_hints in prep for ConfigParameters object
Made ConfigParameters object and used it throughout
Merge pull request #37 from scraperwiki/config-params-structure

All config is contained in a ConfigParameters structure