118 add youtube videos as source to histogram (#122) #105

Job	Run time
docker (autophrase)	14s
docker (histogram)	10s
docker (check_screen_name)	11s
docker (classification_predict)	12s
docker (classification_train)	13s
docker (classification_split)	11s
docker (collect_reddit_comment)	12s
docker (crimson_hexagon_monitors)	12s
docker (image_crawler)	12s
docker (name_entity_recognition)	12s
docker (network_analysis)	9s
docker (preprocessing)	9s
docker (screen_name_prompt)	11s
docker (sentiment_analysis)	11s
docker (topic_modeling)	12s
docker (clowder_create_collection)	13s
docker (clowder_create_dataset)	15s
docker (clowder_create_space)	11s
docker (clowder_list)	13s
docker (clowder_upload_file)	12s
	3m 55s

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