Protect role_id from edit for non Admin users
Protect role_id from edit for non Admin users

Closes #434

damien-biasotto/croogo,rakeshtembhurne/croogo,cvo-technologies/croogo,cvo-technologies/croogo,xintesa/croogo,delkyd/croogo,cvo-technologies/croogo,damien-biasotto/croogo,rchavik/croogo,xintesa/croogo,rakeshtembhurne/croogo,rakeshtembhurne/croogo,Wouter0100/croogo,Wouter0100/croogo,delkyd/croogo,Wouter0100/croogo,rchavik/croogo,xintesa/croogo,delkyd/croogo