FTP ingest: use LIST command as a fallback when MLSD is not supported
FTP ingest: use LIST command as a fallback when MLSD is not supported

superdesk/superdesk-core,petrjasek/superdesk-core,ioanpocol/superdesk-core,petrjasek/superdesk-core,mdhaman/superdesk-core,petrjasek/superdesk-core,mdhaman/superdesk-core,superdesk/superdesk-core,petrjasek/superdesk-core,ioanpocol/superdesk-core,mdhaman/superdesk-core,ioanpocol/superdesk-core,superdesk/superdesk-core,superdesk/superdesk-core