Add timestamped ftp_ls option.
Add timestamped ftp_ls option.

Remove old ad hoc modification of ftp_ls.
Also fix potential bug with not passing
the ftp_path to get_ftp_connection in the
original ftp_ls method.

johnbachman/belpy,sorgerlab/belpy,johnbachman/indra,bgyori/indra,bgyori/indra,johnbachman/indra,pvtodorov/indra,pvtodorov/indra,johnbachman/belpy,bgyori/indra,pvtodorov/indra,johnbachman/belpy,pvtodorov/indra,sorgerlab/belpy,sorgerlab/belpy,johnbachman/indra,sorgerlab/indra,sorgerlab/indra,sorgerlab/indra