Generate build_embedded and start_permanent in new apps

Author: José Valim

lib/mix/lib/mix/tasks/new.ex

@@ -207,6 +207,8 @@ defmodule Mix.Tasks.New do
       [app: :<%= @app %>,
        version: "0.0.1",
        elixir: "~> <%= @version %>",
+       build_embedded: Mix.env == :prod,
+       start_permanent: Mix.env == :prod,
        deps: deps]
     end
 
@@ -242,6 +244,8 @@ defmodule Mix.Tasks.New do
        deps_path: "../../deps",
        lockfile: "../../mix.lock",
        elixir: "~> <%= @version %>",
+       build_embedded: Mix.env == :prod,
+       start_permanent: Mix.env == :prod,
        deps: deps]
     end
 
@@ -277,6 +281,8 @@ defmodule Mix.Tasks.New do
 
     def project do
       [apps_path: "apps",
+       build_embedded: Mix.env == :prod,
+       start_permanent: Mix.env == :prod,
        deps: deps]
     end