task/de14-ta06 -- Make the TransSend scanned_description column
values configurable

nparcel/b2cconfig.py
nparcel/conf/nparceld.conf
nparcel/ondeliverydaemon.py
* new attributes "scan_desc_header" which is the scanned description
  column header in TransSend and "scan_desc_keys" list of
  scan_desc_header` tokens to compare against