code: public void typeMissing() {
  		this.parameterMissing(
  				ProtocolConstants.Parameters.Delete.TYPE,
  				"Please provide the type of the delete request. Use \""
  						+ DeleteRequestType.USER.getIdentifier()
  						+ "\" to delete a user, \""
  						+ DeleteRequestType.FOLLOW.getIdentifier()
  						+ "\" to delete a follow edge or \""
  						+ DeleteRequestType.STATUS_UPDATE.getIdentifier()
  						+ "\" to delete a status update.");
  	}
docs: add status message: delete request type missing