'The credentials were changed from another session.' :  "It's been a while without activity, please load again (F5 on most browser)."
'The presented password cannot be empty.'            :  "Please, enter a valid password."
'The presented password is invalid.'                 :  "Invalid password."
'Bad credentials'                                    :  "Invalid login."

'The username is already used'   :   This username is already used.
'The email is already used'      :   This email address is already used.


error:
  group:
    name:
      unique:            This name is already used for another group.
  registration:
    username:
      min:               Your username must content, at least, %limit% letters.
      max:               Your username must content less than %limit% letters.
    password:
      notsame:           The two password you enter were differents.
  changepassword:
    new:
      notsame:           The two password you enter were differents.
  changeemail:
    email:
      invalid:           Invalid email address.
  element:
    url:
      notblank:          You must enter a URL (starting like http://).
      tolong:            The URL (adresse http://) is too long.
      invalid:           The URL (adresse http://) is not correct.
    name:
      notblank:          You must enter a name.
      toshort:           The name is too short.|The name is too short.
      tolong:            The name is too long.|The name is too long.
  url:
    invalid:             The URL is not a valid one.
  registration:
    email:
      duplicate:         Email address is already in use on muzi.ch
  change_username:
    duplicate:           Username is already in use on muzi.ch
  
registration:
  token:
    error:               The code entered for validation is not valid anymore.
    
group_malchoisis:        The group is not well choosen.
group_invalid:           Not a valid group.
tags_saisinco:           Not a correct tag.