Update CHANGELOG
Update CHANGELOG

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