Better scheduled publishing error reporting
Better scheduled publishing error reporting

Currently much of the context around errors raised during scheduled
publishing is lost because the error message of the exception raised is
not reported.

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