plug_1_mix.exs

defmodule Plugger.Mixfile do
  use Mix.Project

 # Project setup <snip>

  def application do
    [applications: [:logger, :cowboy, :plug],
     mod: {Plugger, []}]
  end

  defp deps do
    [
      {:cowboy, "~> 1.0"},
      {:plug, "~> 1.0"}
    ]
  end
end