Add jason dependency

Author: gaggle

mix.exs

@@ -19,9 +19,6 @@ defmodule ElixirScript.MixProject do
 
   # Run "mix help deps" to learn about dependencies.
   defp deps do
-    [
-      # {:dep_from_hexpm, "~> 0.3.0"},
-      # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"}
-    ]
+    [{:jason, "~> 1.4"}]
   end
 end