removed json and forced authentication on guidance_groups
removed json and forced authentication on guidance_groups

CDLUC3/dmptool,CDLUC3/roadmap,briri/roadmap,DigitalCurationCentre/roadmap,DigitalCurationCentre/roadmap,CDLUC3/roadmap,CDLUC3/roadmap,DigitalCurationCentre/roadmap,CDLUC3/roadmap,DMPRoadmap/roadmap,CDLUC3/dmptool,CDLUC3/dmptool,CDLUC3/dmptool,briri/roadmap,briri/roadmap,DMPRoadmap/roadmap,DMPRoadmap/roadmap