support for zoneid

[Licenser]

Currently zones are gotten via the zone name attribute, this has some problems. For once it's shortened (not the full UUID is shown) then joyent has only put the zonename attribute on some not all zone related values.

The possible way to fix this would be to keep a table of zoneid -> zoneuuid mapping, the maximum # of zones is 8192 so even keeping a static table with 8192 (mostly nil pointers) would be a feasible solution, and just populate it before reach run.