Remove rack-timeout completely

[Finishes #64928422]

Signed-off-by: Tammer Saleh <tsaleh@pivotallabs.com>
Fix per-space legacy domain endpoint

The Space model now does the same organization checks that the Organization model does on legacy domains.

[finishes #63337780]

Signed-off-by: Kris Kelly <kkelly@pivotallabs.com>