refs https://github.com/TryGhost/Toolbox/issues/357
- In upcoming iteration job manager will need "models" fully initialized to be able to persiste one time jobs. This bit of code of in a bad place as it initialized (through require) the job manager without having models module initialized first.
- The change moves that code from a bad to less bad place (wasn't able to think of any better location for now). Checking for `server:testmode' config in job initialization has a little bit of a smell, but don't think it's super critical. Could be improved if a better structure appears in the future!
3e57e6fe10