Refactor BulkUpload to slightly improve clarity
Refactor BulkUpload to slightly improve clarity

robinwhittleton/whitehall,askl56/whitehall,robinwhittleton/whitehall,robinwhittleton/whitehall,ggoral/whitehall,robinwhittleton/whitehall,ggoral/whitehall,alphagov/whitehall,askl56/whitehall,YOTOV-LIMITED/whitehall,ggoral/whitehall,YOTOV-LIMITED/whitehall,ggoral/whitehall,hotvulcan/whitehall,hotvulcan/whitehall,hotvulcan/whitehall,alphagov/whitehall,YOTOV-LIMITED/whitehall,YOTOV-LIMITED/whitehall,askl56/whitehall,hotvulcan/whitehall,alphagov/whitehall,alphagov/whitehall,askl56/whitehall