Drop support for Elixir versions < 1.4

.travis.yml

@@ -1,7 +1,10 @@
 language: elixir
 elixir:
+  - 1.4.5
   - 1.4.4
-  - 1.3.4
+  - 1.4.2
+  - 1.4.1
+  - 1.4.0
 otp_release:
   - 19.3
   - 18.3

CHANGELOG.md

@@ -5,6 +5,14 @@ This project adheres to [Semantic Versioning](http://semver.org/) and
 [Keep a CHANGELOG](http://keepachangelog.com).
 
 
+## Unreleased
+
+### Changed
+
+- Don't support Elixir versions < 1.4 
+
+
+
 ## 0.1.1 - 2017-06-25
 
 ### Fixed

mix.exs

@@ -9,7 +9,7 @@ defmodule RDF.Mixfile do
     [
       app: :rdf,
       version: @version,
-      elixir: "~> 1.3",
+      elixir: "~> 1.4",
       build_embedded: Mix.env == :prod,
       start_permanent: Mix.env == :prod,
       deps: deps(),
@@ -45,7 +45,7 @@ defmodule RDF.Mixfile do
   end
 
   def application do
-    [applications: [:logger]]
+    [extra_applications: [:logger]]
   end
 
   defp deps do