fix README more
ignore .txt files, since they'll just be input (they don't need to be version controlled...)
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