[refinery] Make refinery user's forem_admin? key off of refinery roles.
[refinery] Make refinery user's forem_admin? key off of refinery roles.

nruth/forem,caffo/forem,frankel/forem,STRd6/forem,szymon-przybyl/forem,nruth/forem,substantial/forem,isotope11/forem,substantial/forem,dmitry-ilyashevich/forem,STRd6/forem,isotope11/forem,filiptepper/forem,szymon-przybyl/forem,dmitry-ilyashevich/forem,frankel/forem,filiptepper/forem,caffo/forem