added stop-upload command; removed un-needed file stats; improved daq/upload...

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

RELEASE_NOTES.txt

@@ -5,6 +5,7 @@ Release 0.8 (01/26/2016)
   processed; for uploads system can detect files that had been processed 
   already; improved handling and reporting of processing errors)
 - Source file checksum is calculated for rsync/gridftp plugins by default
+- Added dm-stop-upload command
 - Resolved globus online user authorization delay issue 
 
 Release 0.7 (12/08/2015)