Prevent fully expired crafting data from beaing read in and causing a crash

Author His Dad <John@hisdad.org>
Author date 2014-12-28 18:14:09
Author local date 2014-12-29 07:14:09 +1300
Committer His Dad <John@hisdad.org>
Committer date 2014-12-28 18:14:09
Committer local date 2014-12-29 07:14:09 +1300
Commit 1d1f8fa0da71ccb2bc14ddf3afb89eb88683f055
Tree bce46f396b1ea8030fc1eaac96c32e666f7e997d
Parent de206f663b90665456d0e42b92778485d5331d0e
Prevent fully expired crafting data from beaing read in and causing a crash