Loosen dependency requirements

mix.exs

@@ -31,11 +31,11 @@ defmodule EctoEnum.Mixfile do
   end
 
   defp deps do
-    [{:ecto, "~> 2.2"},
-     {:postgrex, "~> 0.13.0", optional: true},
-     {:mariaex, "~> 0.8.0", optional: true},
-     {:ex_doc, "~> 0.11", only: :dev},
-     {:earmark, "~> 0.1", only: :dev},
+    [{:ecto, ">= 2.0.0"},
+     {:postgrex, ">= 0.0.0", optional: true},
+     {:mariaex, ">= 0.0.0", optional: true},
+     {:ex_doc, "~> 0.13.0", only: [:docs, :dev]},
+     {:earmark, "~> 1.0.1", only: [:docs, :dev]},
      {:inch_ex, ">= 0.0.0", only: [:dev, :test]}]
   end
 end

mix.lock

@@ -1,9 +1,9 @@
 %{"connection": {:hex, :connection, "1.0.4", "a1cae72211f0eef17705aaededacac3eb30e6625b04a6117c1b2db6ace7d5976", [:mix], []},
   "db_connection": {:hex, :db_connection, "1.1.2", "2865c2a4bae0714e2213a0ce60a1b12d76a6efba0c51fbda59c9ab8d1accc7a8", [:mix], [{:connection, "~> 1.0.2", [hex: :connection, repo: "hexpm", optional: false]}, {:poolboy, "~> 1.5", [hex: :poolboy, repo: "hexpm", optional: true]}, {:sbroker, "~> 1.0", [hex: :sbroker, repo: "hexpm", optional: true]}], "hexpm"},
   "decimal": {:hex, :decimal, "1.4.0", "fac965ce71a46aab53d3a6ce45662806bdd708a4a95a65cde8a12eb0124a1333", [:mix], [], "hexpm"},
-  "earmark": {:hex, :earmark, "0.2.1", "ba6d26ceb16106d069b289df66751734802777a3cbb6787026dd800ffeb850f3", [:mix], []},
+  "earmark": {:hex, :earmark, "1.0.3", "89bdbaf2aca8bbb5c97d8b3b55c5dd0cff517ecc78d417e87f1d0982e514557b", [], [], "hexpm"},
   "ecto": {:hex, :ecto, "2.2.1", "ccc6fd304f9bb785f2c3cfd0ee8da6bad6544ab12ca5f7162b20a743d938417c", [:mix], [{:db_connection, "~> 1.1", [hex: :db_connection, repo: "hexpm", optional: true]}, {:decimal, "~> 1.2", [hex: :decimal, repo: "hexpm", optional: false]}, {:mariaex, "~> 0.8.0", [hex: :mariaex, repo: "hexpm", optional: true]}, {:poison, "~> 2.2 or ~> 3.0", [hex: :poison, repo: "hexpm", optional: true]}, {:poolboy, "~> 1.5", [hex: :poolboy, repo: "hexpm", optional: false]}, {:postgrex, "~> 0.13.0", [hex: :postgrex, repo: "hexpm", optional: true]}, {:sbroker, "~> 1.0", [hex: :sbroker, repo: "hexpm", optional: true]}], "hexpm"},
-  "ex_doc": {:hex, :ex_doc, "0.12.0", "b774aabfede4af31c0301aece12371cbd25995a21bb3d71d66f5c2fe074c603f", [:mix], [{:earmark, "~> 0.2", [hex: :earmark, optional: false]}]},
+  "ex_doc": {:hex, :ex_doc, "0.13.2", "1059a588d2ad3ffab25a0b85c58abf08e437d3e7a9124ac255e1d15cec68ab79", [], [{:earmark, "~> 1.0", [hex: :earmark, repo: "hexpm", optional: false]}], "hexpm"},
   "inch_ex": {:hex, :inch_ex, "0.5.5", "b63f57e281467bd3456461525fdbc9e158c8edbe603da6e3e4671befde796a3d", [:mix], [{:poison, "~> 1.5 or ~> 2.0 or ~> 3.0", [hex: :poison, optional: false]}]},
   "mariaex": {:hex, :mariaex, "0.8.3", "bf51ff4d480f68400bad69d1ebe778b6edbcafa4dd0429826ae1dd89cb90c8ad", [:mix], [{:db_connection, "~> 1.1", [hex: :db_connection, repo: "hexpm", optional: false]}, {:decimal, "~> 1.0", [hex: :decimal, repo: "hexpm", optional: false]}], "hexpm"},
   "poison": {:hex, :poison, "3.1.0", "d9eb636610e096f86f25d9a46f35a9facac35609a7591b3be3326e99a0484665", [:mix], [], "hexpm"},