Sentinel Nikola version 3.0.0

- Command line argument `--random-sleep`

- Default for random sleep is to not perform it
- Log format changed to the one generated by firewall3 logging
- Run logrotate more often (logs are rotated faster when nikola is not running)

- Interface filter removed (interface selection should be performed in firewall
  before logging)
- Remove shell script in favor of running nikola directly
- Filtering of IP addresses from private ranges (used by ISPs and are interesting
  as well as public ones)
- All logs with Out direction are now ignored
- Fields `dir`, `event_time`, `packet_count`, `flags` and `rule_id`