update ex_doc

Author: mitchellhenke

mix.exs

@@ -30,7 +30,7 @@ defmodule Sentry.Mixfile do
       {:plug, "~> 1.0", optional: true},
 
       {:dialyxir, "> 0.0.0", only: :dev},
-      {:ex_doc, "~> 0.15.0", only: :dev},
+      {:ex_doc, "~> 0.16.0", only: :dev},
       {:credo, "~> 0.8", only: [:dev, :test], runtime: false},
       {:bypass, "~> 0.7.0", only: [:test]}
     ]

mix.lock

@@ -5,8 +5,8 @@
   "cowlib": {:hex, :cowlib, "1.0.2", "9d769a1d062c9c3ac753096f868ca121e2730b9a377de23dec0f7e08b1df84ee", [:make], []},
   "credo": {:hex, :credo, "0.8.1", "137efcc99b4bc507c958ba9b5dff70149e971250813cbe7d4537ec7e36997402", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, optional: false]}]},
   "dialyxir": {:hex, :dialyxir, "0.5.0", "5bc543f9c28ecd51b99cc1a685a3c2a1a93216990347f259406a910cf048d1d7", [:mix], []},
-  "earmark": {:hex, :earmark, "1.2.0", "bf1ce17aea43ab62f6943b97bd6e3dc032ce45d4f787504e3adf738e54b42f3a", [:mix], []},
-  "ex_doc": {:hex, :ex_doc, "0.15.1", "d5f9d588fd802152516fccfdb96d6073753f77314fcfee892b15b6724ca0d596", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, optional: false]}]},
+  "earmark": {:hex, :earmark, "1.2.2", "f718159d6b65068e8daeef709ccddae5f7fdc770707d82e7d126f584cd925b74", [:mix], []},
+  "ex_doc": {:hex, :ex_doc, "0.16.1", "b4b8a23602b4ce0e9a5a960a81260d1f7b29635b9652c67e95b0c2f7ccee5e81", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, optional: false]}]},
   "hackney": {:hex, :hackney, "1.8.0", "8388a22f4e7eb04d171f2cf0285b217410f266d6c13a4c397a6c22ab823a486c", [:rebar3], [{:certifi, "1.1.0", [hex: :certifi, optional: false]}, {:idna, "4.0.0", [hex: :idna, optional: false]}, {:metrics, "1.0.1", [hex: :metrics, optional: false]}, {:mimerl, "1.0.2", [hex: :mimerl, optional: false]}, {:ssl_verify_fun, "1.1.1", [hex: :ssl_verify_fun, optional: false]}]},
   "idna": {:hex, :idna, "4.0.0", "10aaa9f79d0b12cf0def53038547855b91144f1bfcc0ec73494f38bb7b9c4961", [:rebar3], []},
   "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], []},