Scientists (ought to) accumulate IQ.

This involved giving jobs job responsibilities, giving those a reference to the world view controller, and therefore making jobs always be referenced in the context of the world view controller.
The IQ label shows the current IQ as well as the IQ rate.
Jobs are ordered correctly.
Merge branch 'feature/job-responsibilities' into develop
Merge branch 'develop' of github.com:robrix/meconation into develop