- Update debhelper compatibility to version 9.
- Update build-dependencies.
- Change group of ngircd.conf to "irc" in postinst script (this makes
starting ngIRCd as user "irc" easier, for example when using systemd).
- Don't create /var/run/ircd during installation: this is handled by the
SysV init script and the systemd service already.
In addition to the "ngircd" and "ngircd-full" packages a new package named
"ngircd-full-dbg" is build: this package contains all the features of the
"full" package but includes debug code and both the --debug and --sniffer
options and the resulting binaries are _not_ stripped.
