added new polling observer agent; enhanced upload functionality to avoid resource starvation with simultaneous daqs and uploads; resolved issue with starting uploads with large number of files in the specified directory

added stop-upload command; removed un-needed file stats; improved daq/upload reporting; cleaned up un-needed keys from catalog plugin

reworked reporting for both daqs and uploads; improved ftp utility efficiency; simplified file processing

reworked reporting for both daqs and uploads; improved ftp utility efficiency; simplified file processing