added exception notifications and error swallowing to calais_fetcher
added exception notifications and error swallowing to calais_fetcher

ivarvong/documentcloud,ivarvong/documentcloud,moodpo/documentcloud,monofox/documentcloud,roberttdev/dactyl,documentcloud/documentcloud,moodpo/documentcloud,roberttdev/dactyl4,moodpo/documentcloud,Teino1978-Corp/Teino1978-Corp-documentcloud,dannguyen/documentcloud,documentcloud/documentcloud,gunjanmodi/documentcloud,roberttdev/dactyl,ivarvong/documentcloud,documentcloud/documentcloud,monofox/documentcloud,gunjanmodi/documentcloud,gunjanmodi/documentcloud,monofox/documentcloud,Teino1978-Corp/Teino1978-Corp-documentcloud,ivarvong/documentcloud,documentcloud/documentcloud,roberttdev/dactyl,gunjanmodi/documentcloud,dannguyen/documentcloud,Teino1978-Corp/Teino1978-Corp-documentcloud,Teino1978-Corp/Teino1978-Corp-documentcloud,moodpo/documentcloud,roberttdev/dactyl4,monofox/documentcloud,roberttdev/dactyl4,dannguyen/documentcloud,roberttdev/dactyl4,dannguyen/documentcloud