Make box model migration more robust
Make box model migration more robust

- deal with migrating the current revision
- force a full publish

SpontaneousCMS/spontaneous,opendesk/spontaneous,mediagreenhouse/spontaneous,mediagreenhouse/spontaneous,SpontaneousCMS/spontaneous,mediagreenhouse/spontaneous,opendesk/spontaneous,SpontaneousCMS/spontaneous,opendesk/spontaneous