Don't send reg_id in APNS payload

lib/tusker_push/forwarder.ex

@@ -14,7 +14,6 @@ defmodule TuskerPush.Forwarder do
         },
         "mutable-content" => 1
       },
-      "reg_id" => registration.id,
       "data" => Base.encode64(body),
       "salt" => salt,
       "pk" => key,

lib/tusker_push_web/controllers/push_controller.ex

@@ -12,7 +12,7 @@ defmodule TuskerPushWeb.PushController do
          {:body, {:ok, body, conn}} <- {:body, read_body(conn)},
          {:salt, salt} when not is_nil(salt) <- get_salt(conn),
          {:key, key} when not is_nil(key) <- get_key(conn),
-         context <- Map.get(params, "context"),
+         context <- Map.get(params, "ctx"),
          {:forward, :ok} <- {:forward, Forwarder.forward(registration, body, salt, key, context)} do
       send_resp(conn, 200, "ok")
     else