Add String.Tokenizer back to tokenizer scope
Add String.Tokenizer back to tokenizer scope

pedrosnk/elixir,kimshrier/elixir,antipax/elixir,antipax/elixir,gfvcastro/elixir,kimshrier/elixir,beedub/elixir,lexmag/elixir,michalmuskala/elixir,pedrosnk/elixir,joshprice/elixir,kelvinst/elixir,elixir-lang/elixir,kelvinst/elixir,ggcampinho/elixir,ggcampinho/elixir,beedub/elixir,lexmag/elixir,gfvcastro/elixir