Buccaneers

Buccaneers have received three new abilities - retreat, terrorize and tactics
of the sea (modified from its test run on Thoth's World). Before the questions
begin, this doesn't mean we're bringing the rest of the Thoth skills here.
Tactics was already conceived for implementation here before its (admittedly
underused) trial there.

Buccaneers also now have their own helpfile.

Thanks to Gonnil for the new code for retreat and terrorize.