(#21166) Add support the the iptables recent module.
Make rsource, rdest, reap and rttl known_booleans and remove munging.
Add unit and acceptance tests for the recent iptables module
Some documentation fixups and newvalues to make tests pass
Merge pull request #296 from hunner/ticket/21166-add_support_for_iptables-recent

(MODULES-31) add support for iptables recent