Downgrade ex_doc for Elixir < 1.7

Author: darrenklein

mix.exs

@@ -56,7 +56,7 @@ defmodule Ecto.Adapters.DynamoDB.Mixfile do
       {:hackney, "~> 1.6"},
       {:dialyxir, "~> 0.5", only: [:dev], runtime: false},
       {:eqc_ex, "~> 1.4.2", only: [:dev, :test], runtime: false},
-      {:ex_doc, "~> 0.19", only: :dev, runtime: false},
+      {:ex_doc, "~> 0.18.4", only: :dev, runtime: false},
     ]
   end
 

mix.lock

@@ -7,7 +7,7 @@
   "eqc_ex": {:hex, :eqc_ex, "1.4.2", "c89322cf8fbd4f9ddcb18141fb162a871afd357c55c8c0198441ce95ffe2e105", [:mix], [], "hexpm"},
   "ex_aws": {:hex, :ex_aws, "2.0.1", "cb2c03c0ae4bc007975bd2f6059aa0a1a18a9a4e094a8fd2b5b2bea692e13682", [:mix], [{:configparser_ex, "~> 2.0", [hex: :configparser_ex, repo: "hexpm", optional: true]}, {:hackney, "1.6.3 or 1.6.5 or 1.7.1 or 1.8.6 or ~> 1.9", [hex: :hackney, repo: "hexpm", optional: true]}, {:jsx, "~> 2.8", [hex: :jsx, repo: "hexpm", optional: true]}, {:poison, ">= 1.2.0", [hex: :poison, repo: "hexpm", optional: true]}, {:sweet_xml, "~> 0.6", [hex: :sweet_xml, repo: "hexpm", optional: true]}, {:xml_builder, "~> 0.1.0", [hex: :xml_builder, repo: "hexpm", optional: true]}], "hexpm"},
   "ex_aws_dynamo": {:hex, :ex_aws_dynamo, "2.0.0", "07b1117bbd1b1d04e2598190834c69c271db1d357cc21b82240d1a0b17194165", [], [{:ex_aws, "~> 2.0.0", [hex: :ex_aws, repo: "hexpm", optional: false]}], "hexpm"},
-  "ex_doc": {:hex, :ex_doc, "0.19.1", "519bb9c19526ca51d326c060cb1778d4a9056b190086a8c6c115828eaccea6cf", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.7", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm"},
+  "ex_doc": {:hex, :ex_doc, "0.18.4", "4406b8891cecf1352f49975c6d554e62e4341ceb41b9338949077b0d4a97b949", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}], "hexpm"},
   "hackney": {:hex, :hackney, "1.10.1", "c38d0ca52ea80254936a32c45bb7eb414e7a96a521b4ce76d00a69753b157f21", [:rebar3], [{:certifi, "2.0.0", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "5.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "1.0.1", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "1.0.2", [hex: :mimerl, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "1.1.1", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}], "hexpm"},
   "idna": {:hex, :idna, "5.1.0", "d72b4effeb324ad5da3cab1767cb16b17939004e789d8c0ad5b70f3cea20c89a", [:rebar3], [{:unicode_util_compat, "0.3.1", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm"},
   "makeup": {:hex, :makeup, "0.5.1", "966c5c2296da272d42f1de178c1d135e432662eca795d6dc12e5e8787514edf7", [:mix], [{:nimble_parsec, "~> 0.2.2", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm"},