Update deps (#310)
Update deps (#310)

Upgraded:
  certifi 2.5.3 => 2.6.1
  ex_aws 2.1.7 => 2.1.8
  ex_doc 0.23.0 => 0.24.1 (minor)
  floki 0.30.0 => 0.30.1
  hackney 1.17.0 => 1.17.4
  makeup_elixir 0.15.0 => 0.15.1
New:
  makeup_erlang 0.1.1
simplabs/website,simplabs/website