Fix Elixir 1.4 warnings

lib/tasks/isn.gen.migration.ex

@@ -19,7 +19,7 @@ defmodule Mix.Tasks.Isn.Gen.Migration do
   def run(args) do
     Mix.Task.run "app.start", args
     [repo] = parse_repo(args)
-    filename = "#{timestamp}_create_isn_extension.exs"
+    filename = "#{timestamp()}_create_isn_extension.exs"
     path = Path.relative_to(migrations_path(repo), Mix.Project.app_path)
     file = Path.join(path, filename)
     create_directory(path)

mix.exs

@@ -7,11 +7,11 @@ defmodule ISN.Mixfile do
     [app: :isn,
      version: @version,
      elixir: "~> 1.0",
-     deps: deps,
+     deps: deps(),
      test_paths: ["test"],
      # Hex
-     description: description,
+     description: description(),
-     package: package,
+     package: package(),
      # Docs
      name: "ISN",
      docs: [source_ref: "v#{@version}",

test/isn_test.exs

@@ -4,7 +4,7 @@ defmodule ISNTest do
   alias Postgrex, as: P
 
   setup do
-    options = Keyword.merge(conn_options, [extensions: [{ISN, {}}]])
+    options = Keyword.merge(conn_options(), [extensions: [{ISN, {}}]])
     {:ok, pid} = P.start_link(options)
     {:ok, [pid: pid]}
   end
@@ -49,4 +49,3 @@ defmodule ISNTest do
            query(context[:pid], "SELECT $1::upc", ["220356483481"])
   end
 end
-