Add a column for task run time in the Celery admin.
Add a column for task run time in the Celery admin.

This will be useful for debugging
https://unisubs.sifterapp.com/projects/12298/issues/426582/comments

wevoice/wesub,norayr/unisubs,eloquence/unisubs,ofer43211/unisubs,ReachingOut/unisubs,wevoice/wesub,ujdhesa/unisubs,pculture/unisubs,ofer43211/unisubs,wevoice/wesub,eloquence/unisubs,pculture/unisubs,ReachingOut/unisubs,eloquence/unisubs,ofer43211/unisubs,norayr/unisubs,ReachingOut/unisubs,wevoice/wesub,pculture/unisubs,ujdhesa/unisubs,ofer43211/unisubs,norayr/unisubs,ujdhesa/unisubs,ReachingOut/unisubs,pculture/unisubs,ujdhesa/unisubs,norayr/unisubs,eloquence/unisubs