Update Readme.md.
regex for ipv6 netmask wasn't correct.
Retrieval of set names, tc classes and routing realms is not inline.
Removed hostname completion with @ as prefix.
Fix: target options on first display were mixed with normal options.
Do not allow set names to overlap iptables option names.
Do not de-dupe set names starting with a hyphen.
Use arr+=() instead of subscript on some places.
Query COMP_KNOWN_HOSTS_WITH_HOSTFILE variable for host completion.
If no action is give show available option depending on rule options given.
Bump version to 1.0-alpha-11.