updated templates_controller_test to validate new assumption that customizations are dirty
updated templates_controller_test to validate new assumption that customizations are dirty

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