average_word_length initialized?

[nrjones8]

When running average_word_length, it still requires that we have an instance variable self.average_word_length_initialized referenced here:
https://github.com/NoahCarnahan/plagcomps/blob/master/intrinsic/featureextraction.py#L265

I'm putting the instance variable back in for the moment (until we talk more about how to use avg(word) or however the function name will work. does this make sense @zachwooddoughty or am i missing a silly fix?

[zachwooddoughty]

Whoops, I forgot to mention this at our meeting this morning. average word
length is now deprecated (though I didn't comment that), and you should use
"avg(num_chars)" instead. I'll delete it tonight.