Fixed deprecated fa-remove icon
Merge branch 'master' of git://github.com/Opifer/ContentBundle

# By Rick van Laarhoven (4) and Dylan Schoenmakers (1)
* 'master' of git://github.com/Opifer/ContentBundle:
  Included css styles
  Fixed retrieving expected request
  Fixed deleting content after modal confirmation
  Added the possibility to delete a directory
  Fix a missing getDirectory method in event