support theme option for noty
Merge branch 'master' of git://github.com/AppVentus/AvAlertifyBundle

* 'master' of git://github.com/AppVentus/AvAlertifyBundle:
  kick old flash removers
  2.2ize : fix {% render call to {{ render(controller()) }}
  update README -> customizable confirm.js buttons (class) cancel_button_class and confirm_button_class
  customizable confirm.js buttons (class) cancel_button_class and confirm_button_class