[vz-dev] [volkszaehler/volkszaehler.org] 6b8fae: Fix push-server and tests (#549)

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/volkszaehler/volkszaehler.org
  Commit: 6b8fae96210fbb65b1fc2e32576dd75687ae2205
      https://github.com/volkszaehler/volkszaehler.org/commit/6b8fae96210fbb65b1fc2e32576dd75687ae2205
  Author: andig <cpuidle at gmx.de>
  Date:   2017-01-02 (Mon, 02 Jan 2017)

  Changed paths:
    M lib/Server/HttpReceiver.php
    M test/PushServerTest.php

  Log Message:
  -----------
  Fix push-server and tests (#549)

* Send application/json header

* Simplify receiver logic

* Better push server test