Added skip_grams to EM TCV and moved str_to_bytes to the utils.... and my Black undid some of the changes that Leland had done for some reason to a couple files; not many but a few.
I'll just merge this for now. I had some questions for Colin regarding the directionality of ngrams in the skip_ngrams, but we can deal with those later.
Added skip_grams to EM TCV and moved str_to_bytes to the utils.... and my Black undid some of the changes that Leland had done for some reason to a couple files; not many but a few.