When updating, change the following files (if needed):

- Update rights
- Update ChangeLog
- Check for spelling errors in ChangeLog, manpage and README.
- man/create-man.sh (DATE, version)
- Generate a new manpage.
- Check final manpage with man command.
- configure.ac (VERSION)
- src/nbtscan.c (version)
- Update README
- Test in Debian Sid
