Small optimisation in _iptables_get_target_opts().
Save one loop when removing mutual exclusive -j or -g.
Added recognition of negation for match options.
If previous word is a negation, show only the match options supporting negation.
Fix: add --name and --rttl to recent match.
Add --invert to rpfilter match.
Add --contiguous to time match.
Recognize negation for main options, show only those supporting negation.
Recognize negated protocol.
Adaptions on displaying main options.
Fix: --fragment not being alias de-duped.
More work on main option displaying.
Bump version to 1.0-alpha-16.