Ensure install.sh exits if either of OTP or Elixir fails to install#1782

josevalim merged 1 commit intoelixir-lang:mainelixir-lang/elixir-lang.github.com:mainfrom

zachallaun:za-exit-on-install-failurezachallaun/elixir-lang.github.com:za-exit-on-install-failureCopy head branch name to clipboard