Add atf_tc_expect_fails for cases that have been fixed by FreeBSD @ r266971

Sponsored-by: EMC / Isilon Storage Division
Prune some unnecessary TAP wrappers

Sponsored-by: EMC / Isilon Storage Division
Merge branch 'more-tools-regression-integration' of https://github.com/yaneurabeya/freebsd into more-tools-regression-integration
Impose a 64MB limit via rlimit to avoid timeouts

Sponsored-by: EMC / Isilon Storage Division