customizable confirm.js buttons (class) cancel_button_class and confirm_button_class
Merge branch 'master' of https://github.com/AppVentus/AvAlertifyBundle

# By Paul Andrieux (4) and others
# Via lenybernard (2) and Paul Andrieux (1)
* 'master' of https://github.com/AppVentus/AvAlertifyBundle:
  toastr fix
  correct notset values and modal identifier
  support data attributes to ajax call modal, noty and toastr
  - Removed deprecated call for getFlashes - Fix checkstyle
  support custom width for modal
  support "normal" to add flash (not in array)
  on() instread of live(), supported by jquery new version
  Toastr support
  image ajax-loader
  Create composer.json