move wordlistss into their own files
make WordList class
make TextReader class
move the number_of_occurences counter into the object(s)
move counting into a word_counter class, which contains the word_list
add calculator class, currently just calculates percentages
move bulk of code into a class (under initializer... blech) and make a shell script executable under bin
combine word_counter and word_list (into the former)
move some calculating functionality into a calculator module
move relative_frequency into calculator and clean up some printing as a percent, with 2 decimal places
clean up relative requires
remove 'neutral words' because they don't really matter
make a word_counters class to abstract away the particular mas_ and fem_ objects
change :counter to :count, since that's more idiomatic (with true ruby collections)
scrap calculator and put that functionality in word_counters
get rid of specifying file names in code, use globing instead. (still assumes only two files though)
add ratios for all (not just limited to two!) word_counter combinations
use each_with_object, over a faux & verbose imitation of the same thing
move more functionality into small functions
remove extraneous local variable in text_reader