debian: Update to 3.3.11

Signed-off-by: Gergely Nagy <algernon@balabit.hu>
debian: Ship /var/lib/syslog-ng in the syslog-ng-core package

Closes: Debian #699942
Signed-off-by: Gergely Nagy <algernon@balabit.hu>
debian: Do not always wait for syslog-ng to settle down

When running the init script, do not wait for syslog-ng to settle down
when being installed for the first time, or when upgraded. This fixes
the issue of erroring out during debootstrap.

Closes: 714254
Signed-off-by: Gergely Nagy <algernon@balabit.hu>
debian: Do not try to automatically select features

Signed-off-by: Gergely Nagy <algernon@balabit.hu>
debian/rules: Minor comment cleanups

Signed-off-by: Gergely Nagy <algernon@balabit.hu>
debian/tools/bootstrap.sh: Default to systemd + multi-arch

When no features are set on the command-line, default to systemd +
multi-arch enabled. To turn both off, pass an empty string argument to
the script.

Signed-off-by: Gergely Nagy <algernon@balabit.hu>
debian: Simplify the multi-arch code

Instead of having separate files for multi-arch and non-multi-arch, just
use a double-star in the path.

Signed-off-by: Gergely Nagy <algernon@balabit.hu>