Fixing a efew bugs
Removing an unneeded step
Merge remote-tracking branch 'origin/master'

* origin/master:
  see ya next time!
  Removing section about a bug that's not a bug anymore!
  Update doctrine-listener-update.rst
  almost done!
  Update doctrine-lifecycle-callback.rst
  Update twig-extension-listener.rst
  young jedi
  short chapter!
  aaammaaziinngg
  theoriez
  great code!