LogParser.py: cope with empty referrer or uagent
Statistics.py: count redirect statistics and output to stdout
GeoHour.py: cope with 0 hits
TopVisits.py: generate total redirects #
Merge branch 'fix-missing-referrer-or-uagent' - issue-1

* fix-missing-referrer-or-uagent:
  TopVisits.py: generate total redirects #
  GeoHour.py: cope with 0 hits
  Statistics.py: count redirect statistics and output to stdout
  LogParser.py: cope with empty referrer or uagent