'Perform a delete for the given object in the given container under the
given account.
This creates a tombstone file with the given timestamp, and removes
any older versions of the object file.  Any file that has an older
timestamp than timestamp will be deleted.
:param timestamp: timestamp to compare with each file'

def delete(self, timestamp):

    (fp, md) = self._filesystem.get_object(self._name)
    if (md and (md['X-Timestamp'] < Timestamp(timestamp))):
        self._filesystem.del_object(self._name)
