chore: Resolve compile warnings -> Adjust Config to not warn in later…

… Elixir versions, add missing callbacks that were warning, add oauther to list of applications (#156)

.github/workflows/test_and_lint.yaml

@@ -9,8 +9,6 @@ jobs:
     strategy:
       matrix:
         include:
-          - otp: '20.3'
-            elixir: '1.5'
           - otp: '20.3'
             elixir: '1.9'
           - otp: '24.2'

config/config.exs

@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :extwitter, :oauth, [
    consumer_key:        System.get_env("TWITTER_CONSUMER_KEY"),

lib/extwitter/behaviour.ex

@@ -3,9 +3,12 @@ defmodule ExTwitter.Behaviour do
   A definition of the intended behavior of the core functions.
   """
 
+  @callback add_list_members(integer(), list()) :: [ExTwitter.Model.List.t()]
   @callback configure(Keyword.t()) :: :ok
   @callback configure(:global | :process, Keyword.t()) :: :ok
   @callback configure() :: Keyword.t() | nil
+  @callback create_list(Keyword.t()) :: ExTwitter.Model.List.t()
+  @callback destroy_list(Keyword.t()) :: ExTwitter.Model.List.t()
   @callback request(:get | :post, String.t()) :: map()
   @callback request(:get | :post, String.t(), Keyword.t()) :: map()
   @callback mentions_timeline :: [ExTwitter.Model.Tweet.t()]

mix.exs

@@ -33,7 +33,7 @@ defmodule ExTwitter.Mixfile do
   def application do
     [
       mod: {ExTwitter, []},
-      applications: [:inets, :ssl, :crypto, :logger]
+      applications: [:inets, :ssl, :crypto, :logger, :oauther]
     ]
   end