updates list rest api

- list no longer returns a json array
  but a json object, which contains a
  "messages" json array instead

lib/bump_web/controllers/message_controller.ex

@@ -9,19 +9,19 @@ defmodule BumpWeb.MessageController do
 
   def list(conn, %{"sender" => sender, "minutes" => minutes}) do
     list = Messages.list(sender, String.to_integer(minutes))
-    text conn, Jason.encode!(list)
+    text conn, Jason.encode!(%{"messages" => list})
 
   end
 
   def clear(conn, %{"sender" => sender}) do
     Messages.clear(sender)
-    text conn, "OK"
+    text conn, Jason.encode!(%{"status" => "OK"})
 
   end
 
-  def push(conn, %{"sender" => sender, "message" => message}) do
+  def push(conn, %{"sender" => sender, "data" => message}) do
     Messages.push(sender, message)
-    text conn, "OK"
+    text conn, Jason.encode!(%{"status" => "OK"})
 
   end
 
@@ -30,8 +30,8 @@ defmodule BumpWeb.MessageController do
     text conn, Jason.encode!(message)
   end
 
-  def peak(conn, %{"sender" => sender}) do
-    message = Messages.peak(sender)
+  def peek(conn, %{"sender" => sender}) do
+    message = Messages.peek(sender)
     text conn, Jason.encode!(message)
   end
 end