task/ta-npe-mapper-16 -- mapper daemoniser

nparcel/bin/npmapperd
* new mapper daemon controller script

nparcel/b2cconfig.py
* extended exception capture if missing primary_elect config section

nparcel/utils/conf/log.conf
* support for npmapper file-based logging

nparcel/utils/files.py
* quick fudge to handle no EOL files (in addition to the existing EOL
  based)