Update CHANGELOG
Update CHANGELOG

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