Create MAC callbacks for jail creation/deletion
github-issue: #91

This commit only adds the callback for deletion. Creation will come
soon.

(cherry picked from commit 5210f13cfc23dec017ddf0a922fb395f346697ba)
Signed-off-by: Shawn Webb <shawn.webb@hardenedbsd.org>
Create MAC callbacks for jail creation/deletion
github-issue: #91

Bump HardenedBSD version number due to MAC ABI change.

(cherry picked from commit b734eb479f82c93fb5ce93a66f49672ca059ebd2)
Signed-off-by: Shawn Webb <shawn.webb@hardenedbsd.org>