warnings fixed (#92)

* config from use to import

* fixed Supervisor.Spec.worker/2 is deprecated warning

* remove duplicate behaviour

Author: revati

config/config.exs

@@ -1,3 +1,3 @@
-use Mix.Config
+import Config
 
 import_config "#{Mix.env()}.exs"

config/dev.exs

@@ -1 +1 @@
-use Mix.Config
+import Config

config/test.exs

@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :ex_audit, ExAudit.Test.Repo,
   adapter: Ecto.Adapters.Postgres,

lib/ex_audit.ex

@@ -2,10 +2,8 @@ defmodule ExAudit do
   use Application
 
   def start(_, _) do
-    import Supervisor.Spec
-
     children = [
-      worker(ExAudit.CustomData, [])
+      ExAudit.CustomData
     ]
 
     opts = [strategy: :one_for_one, name: ExAudit.Supervisor]

lib/tracking/custom_data.ex

@@ -5,7 +5,7 @@ defmodule ExAudit.CustomData do
   ETS table that stores custom data for pids
   """
 
-  def start_link() do
+  def start_link([]) do
     GenServer.start_link(__MODULE__, nil, name: __MODULE__)
   end