task/de14-ta04 -- Suppress IPEC to Fast transfers to not trigger a
Toll Parcel Point notification

nparcel/table/transsend.py
* updated the schema() method to include the new columns
  "latest_scanner_description" and "notes"

nparcel/ondelivery.py
* new attributes "scan_desc_header" that represents the TransSend
  column name for the latest scanned description and "scan_desc_keys'
  which is a list of strings that represent a scanned description
  that should be omitted from the search set
* update the process() method to suppress row if scanned description
  value is matched
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